Home / 31,150.86-46,738.17-13,385.40

Finding the Fourth Proportional to 31,150.86, 46,738.17 and 13,385.40

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Solution

The fourth proportional to 31,150.86, 46,738.17 and 13,385.40 is: 20,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,150.86 : 46,738.17 = 13,385.40 : x
  2. Step 2: Convert to fraction form
    31,150.86/46,738.17 = 13,385.40/x
  3. Step 3: Cross multiply
    31,150.86x = 46,738.17 × 13,385.40
  4. Step 4: Simplify right side
    31,150.86x = 625,609,100.72
  5. Step 5: Solve for x
    x = 625,609,100.72/31,150.86
  6. Step 6: Final answer
    x = 20,083.20

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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.