Home / 42,671.13-63,979.29-17,728.41

Finding the Fourth Proportional to 42,671.13, 63,979.29 and 17,728.41

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Solution

The fourth proportional to 42,671.13, 63,979.29 and 17,728.41 is: 26,581.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,671.13 : 63,979.29 = 17,728.41 : x
  2. Step 2: Convert to fraction form
    42,671.13/63,979.29 = 17,728.41/x
  3. Step 3: Cross multiply
    42,671.13x = 63,979.29 × 17,728.41
  4. Step 4: Simplify right side
    42,671.13x = 1,134,251,084.63
  5. Step 5: Solve for x
    x = 1,134,251,084.63/42,671.13
  6. Step 6: Final answer
    x = 26,581.23

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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.