Home / 39,138.20-58,681.80-25,770.76

Finding the Fourth Proportional to 39,138.20, 58,681.80 and 25,770.76

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Solution

The fourth proportional to 39,138.20, 58,681.80 and 25,770.76 is: 38,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.20 : 58,681.80 = 25,770.76 : x
  2. Step 2: Convert to fraction form
    39,138.20/58,681.80 = 25,770.76/x
  3. Step 3: Cross multiply
    39,138.20x = 58,681.80 × 25,770.76
  4. Step 4: Simplify right side
    39,138.20x = 1,512,274,584.17
  5. Step 5: Solve for x
    x = 1,512,274,584.17/39,138.20
  6. Step 6: Final answer
    x = 38,639.35

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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.