Home / 28,517.13-42,669.75-17,937.75

Finding the Fourth Proportional to 28,517.13, 42,669.75 and 17,937.75

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Solution

The fourth proportional to 28,517.13, 42,669.75 and 17,937.75 is: 26,839.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.13 : 42,669.75 = 17,937.75 : x
  2. Step 2: Convert to fraction form
    28,517.13/42,669.75 = 17,937.75/x
  3. Step 3: Cross multiply
    28,517.13x = 42,669.75 × 17,937.75
  4. Step 4: Simplify right side
    28,517.13x = 765,399,308.06
  5. Step 5: Solve for x
    x = 765,399,308.06/28,517.13
  6. Step 6: Final answer
    x = 26,839.98

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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.