Home / 31,354.97-43,270.20-17,207.51

Finding the Fourth Proportional to 31,354.97, 43,270.20 and 17,207.51

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Solution

The fourth proportional to 31,354.97, 43,270.20 and 17,207.51 is: 23,746.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,354.97 : 43,270.20 = 17,207.51 : x
  2. Step 2: Convert to fraction form
    31,354.97/43,270.20 = 17,207.51/x
  3. Step 3: Cross multiply
    31,354.97x = 43,270.20 × 17,207.51
  4. Step 4: Simplify right side
    31,354.97x = 744,572,182.85
  5. Step 5: Solve for x
    x = 744,572,182.85/31,354.97
  6. Step 6: Final answer
    x = 23,746.55

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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.