Home / 31,434.28-43,378.10-17,286.28

Finding the Fourth Proportional to 31,434.28, 43,378.10 and 17,286.28

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Solution

The fourth proportional to 31,434.28, 43,378.10 and 17,286.28 is: 23,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,434.28 : 43,378.10 = 17,286.28 : x
  2. Step 2: Convert to fraction form
    31,434.28/43,378.10 = 17,286.28/x
  3. Step 3: Cross multiply
    31,434.28x = 43,378.10 × 17,286.28
  4. Step 4: Simplify right side
    31,434.28x = 749,845,982.47
  5. Step 5: Solve for x
    x = 749,845,982.47/31,434.28
  6. Step 6: Final answer
    x = 23,854.40

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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.