Home / 28,327.18-42,490.77-13,491.12

Finding the Fourth Proportional to 28,327.18, 42,490.77 and 13,491.12

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Solution

The fourth proportional to 28,327.18, 42,490.77 and 13,491.12 is: 20,236.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.18 : 42,490.77 = 13,491.12 : x
  2. Step 2: Convert to fraction form
    28,327.18/42,490.77 = 13,491.12/x
  3. Step 3: Cross multiply
    28,327.18x = 42,490.77 × 13,491.12
  4. Step 4: Simplify right side
    28,327.18x = 573,248,076.96
  5. Step 5: Solve for x
    x = 573,248,076.96/28,327.18
  6. Step 6: Final answer
    x = 20,236.68

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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.