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Finding the Fourth Proportional to 21,569.59, 32,354.19 and 5,987.21

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Solution

The fourth proportional to 21,569.59, 32,354.19 and 5,987.21 is: 8,980.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569.59 : 32,354.19 = 5,987.21 : x
  2. Step 2: Convert to fraction form
    21,569.59/32,354.19 = 5,987.21/x
  3. Step 3: Cross multiply
    21,569.59x = 32,354.19 × 5,987.21
  4. Step 4: Simplify right side
    21,569.59x = 193,711,329.91
  5. Step 5: Solve for x
    x = 193,711,329.91/21,569.59
  6. Step 6: Final answer
    x = 8,980.76

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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.