Home / 21,248.04-31,882.77-15,047.90

Finding the Fourth Proportional to 21,248.04, 31,882.77 and 15,047.90

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Solution

The fourth proportional to 21,248.04, 31,882.77 and 15,047.90 is: 22,579.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.04 : 31,882.77 = 15,047.90 : x
  2. Step 2: Convert to fraction form
    21,248.04/31,882.77 = 15,047.90/x
  3. Step 3: Cross multiply
    21,248.04x = 31,882.77 × 15,047.90
  4. Step 4: Simplify right side
    21,248.04x = 479,768,575.27
  5. Step 5: Solve for x
    x = 479,768,575.27/21,248.04
  6. Step 6: Final answer
    x = 22,579.43

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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.