Home / 31,316.20-43,215.42-17,168.56

Finding the Fourth Proportional to 31,316.20, 43,215.42 and 17,168.56

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Solution

The fourth proportional to 31,316.20, 43,215.42 and 17,168.56 is: 23,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,316.20 : 43,215.42 = 17,168.56 : x
  2. Step 2: Convert to fraction form
    31,316.20/43,215.42 = 17,168.56/x
  3. Step 3: Cross multiply
    31,316.20x = 43,215.42 × 17,168.56
  4. Step 4: Simplify right side
    31,316.20x = 741,946,531.20
  5. Step 5: Solve for x
    x = 741,946,531.20/31,316.20
  6. Step 6: Final answer
    x = 23,692.10

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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.