Home / 39,463.59-54,459.07-21,558.13

Finding the Fourth Proportional to 39,463.59, 54,459.07 and 21,558.13

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Solution

The fourth proportional to 39,463.59, 54,459.07 and 21,558.13 is: 29,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,463.59 : 54,459.07 = 21,558.13 : x
  2. Step 2: Convert to fraction form
    39,463.59/54,459.07 = 21,558.13/x
  3. Step 3: Cross multiply
    39,463.59x = 54,459.07 × 21,558.13
  4. Step 4: Simplify right side
    39,463.59x = 1,174,035,710.74
  5. Step 5: Solve for x
    x = 1,174,035,710.74/39,463.59
  6. Step 6: Final answer
    x = 29,749.85

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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.