Home / 30,531.06-42,132.11-17,102.23

Finding the Fourth Proportional to 30,531.06, 42,132.11 and 17,102.23

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Solution

The fourth proportional to 30,531.06, 42,132.11 and 17,102.23 is: 23,600.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,531.06 : 42,132.11 = 17,102.23 : x
  2. Step 2: Convert to fraction form
    30,531.06/42,132.11 = 17,102.23/x
  3. Step 3: Cross multiply
    30,531.06x = 42,132.11 × 17,102.23
  4. Step 4: Simplify right side
    30,531.06x = 720,553,078.36
  5. Step 5: Solve for x
    x = 720,553,078.36/30,531.06
  6. Step 6: Final answer
    x = 23,600.66

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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.