Home / 25,790.64-38,691.80-9,150.70

Finding the Fourth Proportional to 25,790.64, 38,691.80 and 9,150.70

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Solution

The fourth proportional to 25,790.64, 38,691.80 and 9,150.70 is: 13,728.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,790.64 : 38,691.80 = 9,150.70 : x
  2. Step 2: Convert to fraction form
    25,790.64/38,691.80 = 9,150.70/x
  3. Step 3: Cross multiply
    25,790.64x = 38,691.80 × 9,150.70
  4. Step 4: Simplify right side
    25,790.64x = 354,056,935.55
  5. Step 5: Solve for x
    x = 354,056,935.55/25,790.64
  6. Step 6: Final answer
    x = 13,728.11

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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.