Home / 38,534.12-57,807.90-13,572.20

Finding the Fourth Proportional to 38,534.12, 57,807.90 and 13,572.20

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Solution

The fourth proportional to 38,534.12, 57,807.90 and 13,572.20 is: 20,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,534.12 : 57,807.90 = 13,572.20 : x
  2. Step 2: Convert to fraction form
    38,534.12/57,807.90 = 13,572.20/x
  3. Step 3: Cross multiply
    38,534.12x = 57,807.90 × 13,572.20
  4. Step 4: Simplify right side
    38,534.12x = 784,580,380.38
  5. Step 5: Solve for x
    x = 784,580,380.38/38,534.12
  6. Step 6: Final answer
    x = 20,360.67

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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.