Home / 25,505.27-38,270.47-11,475.21

Finding the Fourth Proportional to 25,505.27, 38,270.47 and 11,475.21

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Solution

The fourth proportional to 25,505.27, 38,270.47 and 11,475.21 is: 17,218.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,505.27 : 38,270.47 = 11,475.21 : x
  2. Step 2: Convert to fraction form
    25,505.27/38,270.47 = 11,475.21/x
  3. Step 3: Cross multiply
    25,505.27x = 38,270.47 × 11,475.21
  4. Step 4: Simplify right side
    25,505.27x = 439,161,680.05
  5. Step 5: Solve for x
    x = 439,161,680.05/25,505.27
  6. Step 6: Final answer
    x = 17,218.47

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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.