Home / 39,141.20-58,708.58-15,447.78

Finding the Fourth Proportional to 39,141.20, 58,708.58 and 15,447.78

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Solution

The fourth proportional to 39,141.20, 58,708.58 and 15,447.78 is: 23,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,141.20 : 58,708.58 = 15,447.78 : x
  2. Step 2: Convert to fraction form
    39,141.20/58,708.58 = 15,447.78/x
  3. Step 3: Cross multiply
    39,141.20x = 58,708.58 × 15,447.78
  4. Step 4: Simplify right side
    39,141.20x = 906,917,227.95
  5. Step 5: Solve for x
    x = 906,917,227.95/39,141.20
  6. Step 6: Final answer
    x = 23,170.40

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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.