Home / 31,438.57-43,386.12-17,292.31

Finding the Fourth Proportional to 31,438.57, 43,386.12 and 17,292.31

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Solution

The fourth proportional to 31,438.57, 43,386.12 and 17,292.31 is: 23,863.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,438.57 : 43,386.12 = 17,292.31 : x
  2. Step 2: Convert to fraction form
    31,438.57/43,386.12 = 17,292.31/x
  3. Step 3: Cross multiply
    31,438.57x = 43,386.12 × 17,292.31
  4. Step 4: Simplify right side
    31,438.57x = 750,246,236.74
  5. Step 5: Solve for x
    x = 750,246,236.74/31,438.57
  6. Step 6: Final answer
    x = 23,863.88

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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.