Home / 34,542.76-47,672.70-21,121.88

Finding the Fourth Proportional to 34,542.76, 47,672.70 and 21,121.88

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Solution

The fourth proportional to 34,542.76, 47,672.70 and 21,121.88 is: 29,150.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,542.76 : 47,672.70 = 21,121.88 : x
  2. Step 2: Convert to fraction form
    34,542.76/47,672.70 = 21,121.88/x
  3. Step 3: Cross multiply
    34,542.76x = 47,672.70 × 21,121.88
  4. Step 4: Simplify right side
    34,542.76x = 1,006,937,048.68
  5. Step 5: Solve for x
    x = 1,006,937,048.68/34,542.76
  6. Step 6: Final answer
    x = 29,150.45

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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.