Home / 31,868.10-47,792.35-10,516.86

Finding the Fourth Proportional to 31,868.10, 47,792.35 and 10,516.86

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Solution

The fourth proportional to 31,868.10, 47,792.35 and 10,516.86 is: 15,772.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,868.10 : 47,792.35 = 10,516.86 : x
  2. Step 2: Convert to fraction form
    31,868.10/47,792.35 = 10,516.86/x
  3. Step 3: Cross multiply
    31,868.10x = 47,792.35 × 10,516.86
  4. Step 4: Simplify right side
    31,868.10x = 502,625,454.02
  5. Step 5: Solve for x
    x = 502,625,454.02/31,868.10
  6. Step 6: Final answer
    x = 15,772.06

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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.