Home / 25,138.62-34,658.28-20,893.32

Finding the Fourth Proportional to 25,138.62, 34,658.28 and 20,893.32

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Solution

The fourth proportional to 25,138.62, 34,658.28 and 20,893.32 is: 28,805.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,138.62 : 34,658.28 = 20,893.32 : x
  2. Step 2: Convert to fraction form
    25,138.62/34,658.28 = 20,893.32/x
  3. Step 3: Cross multiply
    25,138.62x = 34,658.28 × 20,893.32
  4. Step 4: Simplify right side
    25,138.62x = 724,126,534.69
  5. Step 5: Solve for x
    x = 724,126,534.69/25,138.62
  6. Step 6: Final answer
    x = 28,805.34

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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.