Home / 25,348.20-38,022.30-21,192.90

Finding the Fourth Proportional to 25,348.20, 38,022.30 and 21,192.90

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Solution

The fourth proportional to 25,348.20, 38,022.30 and 21,192.90 is: 31,789.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,348.20 : 38,022.30 = 21,192.90 : x
  2. Step 2: Convert to fraction form
    25,348.20/38,022.30 = 21,192.90/x
  3. Step 3: Cross multiply
    25,348.20x = 38,022.30 × 21,192.90
  4. Step 4: Simplify right side
    25,348.20x = 805,802,801.67
  5. Step 5: Solve for x
    x = 805,802,801.67/25,348.20
  6. Step 6: Final answer
    x = 31,789.35

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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.