Home / 31,230.56-43,102.32-20,084.96

Finding the Fourth Proportional to 31,230.56, 43,102.32 and 20,084.96

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Solution

The fourth proportional to 31,230.56, 43,102.32 and 20,084.96 is: 27,719.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,230.56 : 43,102.32 = 20,084.96 : x
  2. Step 2: Convert to fraction form
    31,230.56/43,102.32 = 20,084.96/x
  3. Step 3: Cross multiply
    31,230.56x = 43,102.32 × 20,084.96
  4. Step 4: Simplify right side
    31,230.56x = 865,708,373.11
  5. Step 5: Solve for x
    x = 865,708,373.11/31,230.56
  6. Step 6: Final answer
    x = 27,719.91

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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.