Home / 22,761.86-31,411.65-13,203.96

Finding the Fourth Proportional to 22,761.86, 31,411.65 and 13,203.96

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Solution

The fourth proportional to 22,761.86, 31,411.65 and 13,203.96 is: 18,221.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,761.86 : 31,411.65 = 13,203.96 : x
  2. Step 2: Convert to fraction form
    22,761.86/31,411.65 = 13,203.96/x
  3. Step 3: Cross multiply
    22,761.86x = 31,411.65 × 13,203.96
  4. Step 4: Simplify right side
    22,761.86x = 414,758,104.11
  5. Step 5: Solve for x
    x = 414,758,104.11/22,761.86
  6. Step 6: Final answer
    x = 18,221.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.