Home / 28,203.28-42,306.16-10,670.88

Finding the Fourth Proportional to 28,203.28, 42,306.16 and 10,670.88

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Solution

The fourth proportional to 28,203.28, 42,306.16 and 10,670.88 is: 16,006.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.28 : 42,306.16 = 10,670.88 : x
  2. Step 2: Convert to fraction form
    28,203.28/42,306.16 = 10,670.88/x
  3. Step 3: Cross multiply
    28,203.28x = 42,306.16 × 10,670.88
  4. Step 4: Simplify right side
    28,203.28x = 451,443,956.62
  5. Step 5: Solve for x
    x = 451,443,956.62/28,203.28
  6. Step 6: Final answer
    x = 16,006.79

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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.