Home / 39,237.04-54,147.57-21,331.65

Finding the Fourth Proportional to 39,237.04, 54,147.57 and 21,331.65

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Solution

The fourth proportional to 39,237.04, 54,147.57 and 21,331.65 is: 29,437.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,237.04 : 54,147.57 = 21,331.65 : x
  2. Step 2: Convert to fraction form
    39,237.04/54,147.57 = 21,331.65/x
  3. Step 3: Cross multiply
    39,237.04x = 54,147.57 × 21,331.65
  4. Step 4: Simplify right side
    39,237.04x = 1,155,057,011.59
  5. Step 5: Solve for x
    x = 1,155,057,011.59/39,237.04
  6. Step 6: Final answer
    x = 29,437.92

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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.