Home / 25,331.28-37,985.76-13,482.20

Finding the Fourth Proportional to 25,331.28, 37,985.76 and 13,482.20

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Solution

The fourth proportional to 25,331.28, 37,985.76 and 13,482.20 is: 20,217.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,331.28 : 37,985.76 = 13,482.20 : x
  2. Step 2: Convert to fraction form
    25,331.28/37,985.76 = 13,482.20/x
  3. Step 3: Cross multiply
    25,331.28x = 37,985.76 × 13,482.20
  4. Step 4: Simplify right side
    25,331.28x = 512,131,423.54
  5. Step 5: Solve for x
    x = 512,131,423.54/25,331.28
  6. Step 6: Final answer
    x = 20,217.35

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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.