Home / 31,400.40-43,335.30-17,256.18

Finding the Fourth Proportional to 31,400.40, 43,335.30 and 17,256.18

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Solution

The fourth proportional to 31,400.40, 43,335.30 and 17,256.18 is: 23,815.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,400.40 : 43,335.30 = 17,256.18 : x
  2. Step 2: Convert to fraction form
    31,400.40/43,335.30 = 17,256.18/x
  3. Step 3: Cross multiply
    31,400.40x = 43,335.30 × 17,256.18
  4. Step 4: Simplify right side
    31,400.40x = 747,801,737.15
  5. Step 5: Solve for x
    x = 747,801,737.15/31,400.40
  6. Step 6: Final answer
    x = 23,815.04

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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.