Home / 31,398.70-47,114.21-17,356.12

Finding the Fourth Proportional to 31,398.70, 47,114.21 and 17,356.12

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Solution

The fourth proportional to 31,398.70, 47,114.21 and 17,356.12 is: 26,043.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,398.70 : 47,114.21 = 17,356.12 : x
  2. Step 2: Convert to fraction form
    31,398.70/47,114.21 = 17,356.12/x
  3. Step 3: Cross multiply
    31,398.70x = 47,114.21 × 17,356.12
  4. Step 4: Simplify right side
    31,398.70x = 817,719,560.11
  5. Step 5: Solve for x
    x = 817,719,560.11/31,398.70
  6. Step 6: Final answer
    x = 26,043.11

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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.