Home / 37,315.20-55,972.80-12,359.10

Finding the Fourth Proportional to 37,315.20, 55,972.80 and 12,359.10

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Solution

The fourth proportional to 37,315.20, 55,972.80 and 12,359.10 is: 18,538.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,315.20 : 55,972.80 = 12,359.10 : x
  2. Step 2: Convert to fraction form
    37,315.20/55,972.80 = 12,359.10/x
  3. Step 3: Cross multiply
    37,315.20x = 55,972.80 × 12,359.10
  4. Step 4: Simplify right side
    37,315.20x = 691,773,432.48
  5. Step 5: Solve for x
    x = 691,773,432.48/37,315.20
  6. Step 6: Final answer
    x = 18,538.65

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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.