Home / 39,279.96-54,207.50-21,376.13

Finding the Fourth Proportional to 39,279.96, 54,207.50 and 21,376.13

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Solution

The fourth proportional to 39,279.96, 54,207.50 and 21,376.13 is: 29,499.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,279.96 : 54,207.50 = 21,376.13 : x
  2. Step 2: Convert to fraction form
    39,279.96/54,207.50 = 21,376.13/x
  3. Step 3: Cross multiply
    39,279.96x = 54,207.50 × 21,376.13
  4. Step 4: Simplify right side
    39,279.96x = 1,158,746,189.06
  5. Step 5: Solve for x
    x = 1,158,746,189.06/39,279.96
  6. Step 6: Final answer
    x = 29,499.68

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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.