Home / 21,497.04-29,666.20-16,109.90

Finding the Fourth Proportional to 21,497.04, 29,666.20 and 16,109.90

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Solution

The fourth proportional to 21,497.04, 29,666.20 and 16,109.90 is: 22,231.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,497.04 : 29,666.20 = 16,109.90 : x
  2. Step 2: Convert to fraction form
    21,497.04/29,666.20 = 16,109.90/x
  3. Step 3: Cross multiply
    21,497.04x = 29,666.20 × 16,109.90
  4. Step 4: Simplify right side
    21,497.04x = 477,919,515.38
  5. Step 5: Solve for x
    x = 477,919,515.38/21,497.04
  6. Step 6: Final answer
    x = 22,231.88

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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.