Home / 37,891.20-52,287.36-21,123.84

Finding the Fourth Proportional to 37,891.20, 52,287.36 and 21,123.84

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Solution

The fourth proportional to 37,891.20, 52,287.36 and 21,123.84 is: 29,149.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,891.20 : 52,287.36 = 21,123.84 : x
  2. Step 2: Convert to fraction form
    37,891.20/52,287.36 = 21,123.84/x
  3. Step 3: Cross multiply
    37,891.20x = 52,287.36 × 21,123.84
  4. Step 4: Simplify right side
    37,891.20x = 1,104,509,826.66
  5. Step 5: Solve for x
    x = 1,104,509,826.66/37,891.20
  6. Step 6: Final answer
    x = 29,149.51

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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.