Home / 25,927.60-38,891.40-20,743.60

Finding the Fourth Proportional to 25,927.60, 38,891.40 and 20,743.60

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Solution

The fourth proportional to 25,927.60, 38,891.40 and 20,743.60 is: 31,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,927.60 : 38,891.40 = 20,743.60 : x
  2. Step 2: Convert to fraction form
    25,927.60/38,891.40 = 20,743.60/x
  3. Step 3: Cross multiply
    25,927.60x = 38,891.40 × 20,743.60
  4. Step 4: Simplify right side
    25,927.60x = 806,747,645.04
  5. Step 5: Solve for x
    x = 806,747,645.04/25,927.60
  6. Step 6: Final answer
    x = 31,115.40

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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.