Home / 28,680.28-43,004.04-17,001.72

Finding the Fourth Proportional to 28,680.28, 43,004.04 and 17,001.72

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Solution

The fourth proportional to 28,680.28, 43,004.04 and 17,001.72 is: 25,492.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680.28 : 43,004.04 = 17,001.72 : x
  2. Step 2: Convert to fraction form
    28,680.28/43,004.04 = 17,001.72/x
  3. Step 3: Cross multiply
    28,680.28x = 43,004.04 × 17,001.72
  4. Step 4: Simplify right side
    28,680.28x = 731,142,646.95
  5. Step 5: Solve for x
    x = 731,142,646.95/28,680.28
  6. Step 6: Final answer
    x = 25,492.87

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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.