Home / 34,761.52-47,975.56-21,330.28

Finding the Fourth Proportional to 34,761.52, 47,975.56 and 21,330.28

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Solution

The fourth proportional to 34,761.52, 47,975.56 and 21,330.28 is: 29,438.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,761.52 : 47,975.56 = 21,330.28 : x
  2. Step 2: Convert to fraction form
    34,761.52/47,975.56 = 21,330.28/x
  3. Step 3: Cross multiply
    34,761.52x = 47,975.56 × 21,330.28
  4. Step 4: Simplify right side
    34,761.52x = 1,023,332,127.96
  5. Step 5: Solve for x
    x = 1,023,332,127.96/34,761.52
  6. Step 6: Final answer
    x = 29,438.65

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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.