Home / 42,138.51-63,190.17-17,161.55

Finding the Fourth Proportional to 42,138.51, 63,190.17 and 17,161.55

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Solution

The fourth proportional to 42,138.51, 63,190.17 and 17,161.55 is: 25,735.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,138.51 : 63,190.17 = 17,161.55 : x
  2. Step 2: Convert to fraction form
    42,138.51/63,190.17 = 17,161.55/x
  3. Step 3: Cross multiply
    42,138.51x = 63,190.17 × 17,161.55
  4. Step 4: Simplify right side
    42,138.51x = 1,084,441,261.96
  5. Step 5: Solve for x
    x = 1,084,441,261.96/42,138.51
  6. Step 6: Final answer
    x = 25,735.16

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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.