Home / 20,535.25-28,312.96-17,137.15

Finding the Fourth Proportional to 20,535.25, 28,312.96 and 17,137.15

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Solution

The fourth proportional to 20,535.25, 28,312.96 and 17,137.15 is: 23,627.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.25 : 28,312.96 = 17,137.15 : x
  2. Step 2: Convert to fraction form
    20,535.25/28,312.96 = 17,137.15/x
  3. Step 3: Cross multiply
    20,535.25x = 28,312.96 × 17,137.15
  4. Step 4: Simplify right side
    20,535.25x = 485,203,442.46
  5. Step 5: Solve for x
    x = 485,203,442.46/20,535.25
  6. Step 6: Final answer
    x = 23,627.83

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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.