Home / 22,516.53-31,070.65-12,443.34

Finding the Fourth Proportional to 22,516.53, 31,070.65 and 12,443.34

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Solution

The fourth proportional to 22,516.53, 31,070.65 and 12,443.34 is: 17,170.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,516.53 : 31,070.65 = 12,443.34 : x
  2. Step 2: Convert to fraction form
    22,516.53/31,070.65 = 12,443.34/x
  3. Step 3: Cross multiply
    22,516.53x = 31,070.65 × 12,443.34
  4. Step 4: Simplify right side
    22,516.53x = 386,622,661.97
  5. Step 5: Solve for x
    x = 386,622,661.97/22,516.53
  6. Step 6: Final answer
    x = 17,170.61

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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.