Home / 39,225.56-54,130.70-21,320.92

Finding the Fourth Proportional to 39,225.56, 54,130.70 and 21,320.92

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Solution

The fourth proportional to 39,225.56, 54,130.70 and 21,320.92 is: 29,422.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,225.56 : 54,130.70 = 21,320.92 : x
  2. Step 2: Convert to fraction form
    39,225.56/54,130.70 = 21,320.92/x
  3. Step 3: Cross multiply
    39,225.56x = 54,130.70 × 21,320.92
  4. Step 4: Simplify right side
    39,225.56x = 1,154,116,324.24
  5. Step 5: Solve for x
    x = 1,154,116,324.24/39,225.56
  6. Step 6: Final answer
    x = 29,422.56

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Double scale
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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.