Home / 31,439.61-43,385.79-17,292.48

Finding the Fourth Proportional to 31,439.61, 43,385.79 and 17,292.48

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Solution

The fourth proportional to 31,439.61, 43,385.79 and 17,292.48 is: 23,863.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439.61 : 43,385.79 = 17,292.48 : x
  2. Step 2: Convert to fraction form
    31,439.61/43,385.79 = 17,292.48/x
  3. Step 3: Cross multiply
    31,439.61x = 43,385.79 × 17,292.48
  4. Step 4: Simplify right side
    31,439.61x = 750,247,905.86
  5. Step 5: Solve for x
    x = 750,247,905.86/31,439.61
  6. Step 6: Final answer
    x = 23,863.14

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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.