Home / 28,039.20-42,002.10-17,476.80

Finding the Fourth Proportional to 28,039.20, 42,002.10 and 17,476.80

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Solution

The fourth proportional to 28,039.20, 42,002.10 and 17,476.80 is: 26,179.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039.20 : 42,002.10 = 17,476.80 : x
  2. Step 2: Convert to fraction form
    28,039.20/42,002.10 = 17,476.80/x
  3. Step 3: Cross multiply
    28,039.20x = 42,002.10 × 17,476.80
  4. Step 4: Simplify right side
    28,039.20x = 734,062,301.28
  5. Step 5: Solve for x
    x = 734,062,301.28/28,039.20
  6. Step 6: Final answer
    x = 26,179.86

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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.