Home / 42,515.88-58,680.05-28,150.38

Finding the Fourth Proportional to 42,515.88, 58,680.05 and 28,150.38

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Solution

The fourth proportional to 42,515.88, 58,680.05 and 28,150.38 is: 38,852.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,515.88 : 58,680.05 = 28,150.38 : x
  2. Step 2: Convert to fraction form
    42,515.88/58,680.05 = 28,150.38/x
  3. Step 3: Cross multiply
    42,515.88x = 58,680.05 × 28,150.38
  4. Step 4: Simplify right side
    42,515.88x = 1,651,865,400.13
  5. Step 5: Solve for x
    x = 1,651,865,400.13/42,515.88
  6. Step 6: Final answer
    x = 38,852.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.