Home / 30,618.30-42,250.11-17,191.04

Finding the Fourth Proportional to 30,618.30, 42,250.11 and 17,191.04

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Solution

The fourth proportional to 30,618.30, 42,250.11 and 17,191.04 is: 23,721.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,618.30 : 42,250.11 = 17,191.04 : x
  2. Step 2: Convert to fraction form
    30,618.30/42,250.11 = 17,191.04/x
  3. Step 3: Cross multiply
    30,618.30x = 42,250.11 × 17,191.04
  4. Step 4: Simplify right side
    30,618.30x = 726,323,055.30
  5. Step 5: Solve for x
    x = 726,323,055.30/30,618.30
  6. Step 6: Final answer
    x = 23,721.86

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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.