Home / 20,603.15-30,883.17-9,517.10

Finding the Fourth Proportional to 20,603.15, 30,883.17 and 9,517.10

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Solution

The fourth proportional to 20,603.15, 30,883.17 and 9,517.10 is: 14,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603.15 : 30,883.17 = 9,517.10 : x
  2. Step 2: Convert to fraction form
    20,603.15/30,883.17 = 9,517.10/x
  3. Step 3: Cross multiply
    20,603.15x = 30,883.17 × 9,517.10
  4. Step 4: Simplify right side
    20,603.15x = 293,918,294.41
  5. Step 5: Solve for x
    x = 293,918,294.41/20,603.15
  6. Step 6: Final answer
    x = 14,265.70

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1.5x scale

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.