Home / 38,120.11-57,202.64-15,931.78

Finding the Fourth Proportional to 38,120.11, 57,202.64 and 15,931.78

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Solution

The fourth proportional to 38,120.11, 57,202.64 and 15,931.78 is: 23,907.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,120.11 : 57,202.64 = 15,931.78 : x
  2. Step 2: Convert to fraction form
    38,120.11/57,202.64 = 15,931.78/x
  3. Step 3: Cross multiply
    38,120.11x = 57,202.64 × 15,931.78
  4. Step 4: Simplify right side
    38,120.11x = 911,339,875.90
  5. Step 5: Solve for x
    x = 911,339,875.90/38,120.11
  6. Step 6: Final answer
    x = 23,907.06

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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.