Home / 31,097.85-42,916.16-17,671.35

Finding the Fourth Proportional to 31,097.85, 42,916.16 and 17,671.35

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Solution

The fourth proportional to 31,097.85, 42,916.16 and 17,671.35 is: 24,387.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,097.85 : 42,916.16 = 17,671.35 : x
  2. Step 2: Convert to fraction form
    31,097.85/42,916.16 = 17,671.35/x
  3. Step 3: Cross multiply
    31,097.85x = 42,916.16 × 17,671.35
  4. Step 4: Simplify right side
    31,097.85x = 758,386,689.13
  5. Step 5: Solve for x
    x = 758,386,689.13/31,097.85
  6. Step 6: Final answer
    x = 24,387.11

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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.