Home / 30,680.40-42,335.88-17,249.52

Finding the Fourth Proportional to 30,680.40, 42,335.88 and 17,249.52

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Solution

The fourth proportional to 30,680.40, 42,335.88 and 17,249.52 is: 23,802.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680.40 : 42,335.88 = 17,249.52 : x
  2. Step 2: Convert to fraction form
    30,680.40/42,335.88 = 17,249.52/x
  3. Step 3: Cross multiply
    30,680.40x = 42,335.88 × 17,249.52
  4. Step 4: Simplify right side
    30,680.40x = 730,273,608.78
  5. Step 5: Solve for x
    x = 730,273,608.78/30,680.40
  6. Step 6: Final answer
    x = 23,802.61

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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.