Home / 28,147.85-38,761.36-25,162.59

Finding the Fourth Proportional to 28,147.85, 38,761.36 and 25,162.59

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Solution

The fourth proportional to 28,147.85, 38,761.36 and 25,162.59 is: 34,650.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.85 : 38,761.36 = 25,162.59 : x
  2. Step 2: Convert to fraction form
    28,147.85/38,761.36 = 25,162.59/x
  3. Step 3: Cross multiply
    28,147.85x = 38,761.36 × 25,162.59
  4. Step 4: Simplify right side
    28,147.85x = 975,336,146.62
  5. Step 5: Solve for x
    x = 975,336,146.62/28,147.85
  6. Step 6: Final answer
    x = 34,650.47

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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.