Home / 21,249.04-31,909.20-15,984.04

Finding the Fourth Proportional to 21,249.04, 31,909.20 and 15,984.04

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Solution

The fourth proportional to 21,249.04, 31,909.20 and 15,984.04 is: 24,002.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.04 : 31,909.20 = 15,984.04 : x
  2. Step 2: Convert to fraction form
    21,249.04/31,909.20 = 15,984.04/x
  3. Step 3: Cross multiply
    21,249.04x = 31,909.20 × 15,984.04
  4. Step 4: Simplify right side
    21,249.04x = 510,037,929.17
  5. Step 5: Solve for x
    x = 510,037,929.17/21,249.04
  6. Step 6: Final answer
    x = 24,002.87

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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.