Home / 30,983.15-42,755.36-17,553.62

Finding the Fourth Proportional to 30,983.15, 42,755.36 and 17,553.62

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Solution

The fourth proportional to 30,983.15, 42,755.36 and 17,553.62 is: 24,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,983.15 : 42,755.36 = 17,553.62 : x
  2. Step 2: Convert to fraction form
    30,983.15/42,755.36 = 17,553.62/x
  3. Step 3: Cross multiply
    30,983.15x = 42,755.36 × 17,553.62
  4. Step 4: Simplify right side
    30,983.15x = 750,511,040.86
  5. Step 5: Solve for x
    x = 750,511,040.86/30,983.15
  6. Step 6: Final answer
    x = 24,223.20

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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.