Home / 28,178.28-38,797.38-22,890.60

Finding the Fourth Proportional to 28,178.28, 38,797.38 and 22,890.60

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Solution

The fourth proportional to 28,178.28, 38,797.38 and 22,890.60 is: 31,517.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,178.28 : 38,797.38 = 22,890.60 : x
  2. Step 2: Convert to fraction form
    28,178.28/38,797.38 = 22,890.60/x
  3. Step 3: Cross multiply
    28,178.28x = 38,797.38 × 22,890.60
  4. Step 4: Simplify right side
    28,178.28x = 888,095,306.63
  5. Step 5: Solve for x
    x = 888,095,306.63/28,178.28
  6. Step 6: Final answer
    x = 31,517.02

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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.