Home / 42,138.13-63,170.19-17,199.19

Finding the Fourth Proportional to 42,138.13, 63,170.19 and 17,199.19

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Solution

The fourth proportional to 42,138.13, 63,170.19 and 17,199.19 is: 25,783.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,138.13 : 63,170.19 = 17,199.19 : x
  2. Step 2: Convert to fraction form
    42,138.13/63,170.19 = 17,199.19/x
  3. Step 3: Cross multiply
    42,138.13x = 63,170.19 × 17,199.19
  4. Step 4: Simplify right side
    42,138.13x = 1,086,476,100.15
  5. Step 5: Solve for x
    x = 1,086,476,100.15/42,138.13
  6. Step 6: Final answer
    x = 25,783.68

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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.