Home / 25,197.68-34,769.12-15,123.98

Finding the Fourth Proportional to 25,197.68, 34,769.12 and 15,123.98

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Solution

The fourth proportional to 25,197.68, 34,769.12 and 15,123.98 is: 20,868.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,197.68 : 34,769.12 = 15,123.98 : x
  2. Step 2: Convert to fraction form
    25,197.68/34,769.12 = 15,123.98/x
  3. Step 3: Cross multiply
    25,197.68x = 34,769.12 × 15,123.98
  4. Step 4: Simplify right side
    25,197.68x = 525,847,475.50
  5. Step 5: Solve for x
    x = 525,847,475.50/25,197.68
  6. Step 6: Final answer
    x = 20,868.88

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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.