Home / 25,478.68-38,162.26-18,060.64

Finding the Fourth Proportional to 25,478.68, 38,162.26 and 18,060.64

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Solution

The fourth proportional to 25,478.68, 38,162.26 and 18,060.64 is: 27,051.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,478.68 : 38,162.26 = 18,060.64 : x
  2. Step 2: Convert to fraction form
    25,478.68/38,162.26 = 18,060.64/x
  3. Step 3: Cross multiply
    25,478.68x = 38,162.26 × 18,060.64
  4. Step 4: Simplify right side
    25,478.68x = 689,234,839.45
  5. Step 5: Solve for x
    x = 689,234,839.45/25,478.68
  6. Step 6: Final answer
    x = 27,051.43

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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.