Home / 25,451.28-35,123.04-15,383.52

Finding the Fourth Proportional to 25,451.28, 35,123.04 and 15,383.52

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Solution

The fourth proportional to 25,451.28, 35,123.04 and 15,383.52 is: 21,229.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.28 : 35,123.04 = 15,383.52 : x
  2. Step 2: Convert to fraction form
    25,451.28/35,123.04 = 15,383.52/x
  3. Step 3: Cross multiply
    25,451.28x = 35,123.04 × 15,383.52
  4. Step 4: Simplify right side
    25,451.28x = 540,315,988.30
  5. Step 5: Solve for x
    x = 540,315,988.30/25,451.28
  6. Step 6: Final answer
    x = 21,229.42

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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.