Home / 71,513.20-107,287.16-21,590.32

Finding the Fourth Proportional to 71,513.20, 107,287.16 and 21,590.32

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Solution

The fourth proportional to 71,513.20, 107,287.16 and 21,590.32 is: 32,390.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,513.20 : 107,287.16 = 21,590.32 : x
  2. Step 2: Convert to fraction form
    71,513.20/107,287.16 = 21,590.32/x
  3. Step 3: Cross multiply
    71,513.20x = 107,287.16 × 21,590.32
  4. Step 4: Simplify right side
    71,513.20x = 2,316,364,116.29
  5. Step 5: Solve for x
    x = 2,316,364,116.29/71,513.20
  6. Step 6: Final answer
    x = 32,390.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.