Home / 38,428.02-57,642.30-12,134.88

Finding the Fourth Proportional to 38,428.02, 57,642.30 and 12,134.88

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Solution

The fourth proportional to 38,428.02, 57,642.30 and 12,134.88 is: 18,202.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,428.02 : 57,642.30 = 12,134.88 : x
  2. Step 2: Convert to fraction form
    38,428.02/57,642.30 = 12,134.88/x
  3. Step 3: Cross multiply
    38,428.02x = 57,642.30 × 12,134.88
  4. Step 4: Simplify right side
    38,428.02x = 699,482,393.42
  5. Step 5: Solve for x
    x = 699,482,393.42/38,428.02
  6. Step 6: Final answer
    x = 18,202.41

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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.