Home / 31,937.42-47,911.88-13,207.28

Finding the Fourth Proportional to 31,937.42, 47,911.88 and 13,207.28

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Solution

The fourth proportional to 31,937.42, 47,911.88 and 13,207.28 is: 19,813.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,937.42 : 47,911.88 = 13,207.28 : x
  2. Step 2: Convert to fraction form
    31,937.42/47,911.88 = 13,207.28/x
  3. Step 3: Cross multiply
    31,937.42x = 47,911.88 × 13,207.28
  4. Step 4: Simplify right side
    31,937.42x = 632,785,407.95
  5. Step 5: Solve for x
    x = 632,785,407.95/31,937.42
  6. Step 6: Final answer
    x = 19,813.29

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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.