Home / 30,511.38-45,759.90-17,190.16

Finding the Fourth Proportional to 30,511.38, 45,759.90 and 17,190.16

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Solution

The fourth proportional to 30,511.38, 45,759.90 and 17,190.16 is: 25,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,511.38 : 45,759.90 = 17,190.16 : x
  2. Step 2: Convert to fraction form
    30,511.38/45,759.90 = 17,190.16/x
  3. Step 3: Cross multiply
    30,511.38x = 45,759.90 × 17,190.16
  4. Step 4: Simplify right side
    30,511.38x = 786,620,073.18
  5. Step 5: Solve for x
    x = 786,620,073.18/30,511.38
  6. Step 6: Final answer
    x = 25,781.20

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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.