Home / 31,465.28-43,423.28-17,319.20

Finding the Fourth Proportional to 31,465.28, 43,423.28 and 17,319.20

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Solution

The fourth proportional to 31,465.28, 43,423.28 and 17,319.20 is: 23,901.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,465.28 : 43,423.28 = 17,319.20 : x
  2. Step 2: Convert to fraction form
    31,465.28/43,423.28 = 17,319.20/x
  3. Step 3: Cross multiply
    31,465.28x = 43,423.28 × 17,319.20
  4. Step 4: Simplify right side
    31,465.28x = 752,056,470.98
  5. Step 5: Solve for x
    x = 752,056,470.98/31,465.28
  6. Step 6: Final answer
    x = 23,901.15

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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.