Home / 28,233.32-38,962.16-15,658.88

Finding the Fourth Proportional to 28,233.32, 38,962.16 and 15,658.88

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Solution

The fourth proportional to 28,233.32, 38,962.16 and 15,658.88 is: 21,609.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233.32 : 38,962.16 = 15,658.88 : x
  2. Step 2: Convert to fraction form
    28,233.32/38,962.16 = 15,658.88/x
  3. Step 3: Cross multiply
    28,233.32x = 38,962.16 × 15,658.88
  4. Step 4: Simplify right side
    28,233.32x = 610,103,514.88
  5. Step 5: Solve for x
    x = 610,103,514.88/28,233.32
  6. Step 6: Final answer
    x = 21,609.35

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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.