Home / 31,191.52-43,073.04-20,032.96

Finding the Fourth Proportional to 31,191.52, 43,073.04 and 20,032.96

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Solution

The fourth proportional to 31,191.52, 43,073.04 and 20,032.96 is: 27,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,191.52 : 43,073.04 = 20,032.96 : x
  2. Step 2: Convert to fraction form
    31,191.52/43,073.04 = 20,032.96/x
  3. Step 3: Cross multiply
    31,191.52x = 43,073.04 × 20,032.96
  4. Step 4: Simplify right side
    31,191.52x = 862,880,487.40
  5. Step 5: Solve for x
    x = 862,880,487.40/31,191.52
  6. Step 6: Final answer
    x = 27,663.94

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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.