Home / 28,002.30-42,003.45-17,634.30

Finding the Fourth Proportional to 28,002.30, 42,003.45 and 17,634.30

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Solution

The fourth proportional to 28,002.30, 42,003.45 and 17,634.30 is: 26,451.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,002.30 : 42,003.45 = 17,634.30 : x
  2. Step 2: Convert to fraction form
    28,002.30/42,003.45 = 17,634.30/x
  3. Step 3: Cross multiply
    28,002.30x = 42,003.45 × 17,634.30
  4. Step 4: Simplify right side
    28,002.30x = 740,701,438.34
  5. Step 5: Solve for x
    x = 740,701,438.34/28,002.30
  6. Step 6: Final answer
    x = 26,451.45

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Similar ratio
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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.