Home / 39,155.22-54,034.24-21,250.23

Finding the Fourth Proportional to 39,155.22, 54,034.24 and 21,250.23

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Solution

The fourth proportional to 39,155.22, 54,034.24 and 21,250.23 is: 29,325.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,155.22 : 54,034.24 = 21,250.23 : x
  2. Step 2: Convert to fraction form
    39,155.22/54,034.24 = 21,250.23/x
  3. Step 3: Cross multiply
    39,155.22x = 54,034.24 × 21,250.23
  4. Step 4: Simplify right side
    39,155.22x = 1,148,240,027.88
  5. Step 5: Solve for x
    x = 1,148,240,027.88/39,155.22
  6. Step 6: Final answer
    x = 29,325.34

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Half scale
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Double scale
Find fourth proportional to 39,156.22, 54,035.62 and 21,251.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.