Home / 39,155.66-54,034.36-21,250.68

Finding the Fourth Proportional to 39,155.66, 54,034.36 and 21,250.68

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Solution

The fourth proportional to 39,155.66, 54,034.36 and 21,250.68 is: 29,325.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,155.66 : 54,034.36 = 21,250.68 : x
  2. Step 2: Convert to fraction form
    39,155.66/54,034.36 = 21,250.68/x
  3. Step 3: Cross multiply
    39,155.66x = 54,034.36 × 21,250.68
  4. Step 4: Simplify right side
    39,155.66x = 1,148,266,893.36
  5. Step 5: Solve for x
    x = 1,148,266,893.36/39,155.66
  6. Step 6: Final answer
    x = 29,325.69

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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.