Home / 31,306.56-43,204.16-17,159.40

Finding the Fourth Proportional to 31,306.56, 43,204.16 and 17,159.40

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Solution

The fourth proportional to 31,306.56, 43,204.16 and 17,159.40 is: 23,680.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,306.56 : 43,204.16 = 17,159.40 : x
  2. Step 2: Convert to fraction form
    31,306.56/43,204.16 = 17,159.40/x
  3. Step 3: Cross multiply
    31,306.56x = 43,204.16 × 17,159.40
  4. Step 4: Simplify right side
    31,306.56x = 741,357,463.10
  5. Step 5: Solve for x
    x = 741,357,463.10/31,306.56
  6. Step 6: Final answer
    x = 23,680.58

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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.