Home / 31,680.56-47,557.56-18,542.48

Finding the Fourth Proportional to 31,680.56, 47,557.56 and 18,542.48

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Solution

The fourth proportional to 31,680.56, 47,557.56 and 18,542.48 is: 27,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,680.56 : 47,557.56 = 18,542.48 : x
  2. Step 2: Convert to fraction form
    31,680.56/47,557.56 = 18,542.48/x
  3. Step 3: Cross multiply
    31,680.56x = 47,557.56 × 18,542.48
  4. Step 4: Simplify right side
    31,680.56x = 881,835,105.15
  5. Step 5: Solve for x
    x = 881,835,105.15/31,680.56
  6. Step 6: Final answer
    x = 27,835.21

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1.5x scale

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.