Home / 31,769.76-47,659.92-10,988.40

Finding the Fourth Proportional to 31,769.76, 47,659.92 and 10,988.40

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Solution

The fourth proportional to 31,769.76, 47,659.92 and 10,988.40 is: 16,484.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,769.76 : 47,659.92 = 10,988.40 : x
  2. Step 2: Convert to fraction form
    31,769.76/47,659.92 = 10,988.40/x
  3. Step 3: Cross multiply
    31,769.76x = 47,659.92 × 10,988.40
  4. Step 4: Simplify right side
    31,769.76x = 523,706,264.93
  5. Step 5: Solve for x
    x = 523,706,264.93/31,769.76
  6. Step 6: Final answer
    x = 16,484.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.