Home / 42,578.84-63,863.40-11,411.66

Finding the Fourth Proportional to 42,578.84, 63,863.40 and 11,411.66

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Solution

The fourth proportional to 42,578.84, 63,863.40 and 11,411.66 is: 17,116.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,578.84 : 63,863.40 = 11,411.66 : x
  2. Step 2: Convert to fraction form
    42,578.84/63,863.40 = 11,411.66/x
  3. Step 3: Cross multiply
    42,578.84x = 63,863.40 × 11,411.66
  4. Step 4: Simplify right side
    42,578.84x = 728,787,407.24
  5. Step 5: Solve for x
    x = 728,787,407.24/42,578.84
  6. Step 6: Final answer
    x = 17,116.19

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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.