Home / 31,640.28-47,444.40-10,572.81

Finding the Fourth Proportional to 31,640.28, 47,444.40 and 10,572.81

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Solution

The fourth proportional to 31,640.28, 47,444.40 and 10,572.81 is: 15,853.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,640.28 : 47,444.40 = 10,572.81 : x
  2. Step 2: Convert to fraction form
    31,640.28/47,444.40 = 10,572.81/x
  3. Step 3: Cross multiply
    31,640.28x = 47,444.40 × 10,572.81
  4. Step 4: Simplify right side
    31,640.28x = 501,620,626.76
  5. Step 5: Solve for x
    x = 501,620,626.76/31,640.28
  6. Step 6: Final answer
    x = 15,853.86

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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.