Home / 18,680.24-28,021.50-6,031.28

Finding the Fourth Proportional to 18,680.24, 28,021.50 and 6,031.28

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Solution

The fourth proportional to 18,680.24, 28,021.50 and 6,031.28 is: 9,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680.24 : 28,021.50 = 6,031.28 : x
  2. Step 2: Convert to fraction form
    18,680.24/28,021.50 = 6,031.28/x
  3. Step 3: Cross multiply
    18,680.24x = 28,021.50 × 6,031.28
  4. Step 4: Simplify right side
    18,680.24x = 169,005,512.52
  5. Step 5: Solve for x
    x = 169,005,512.52/18,680.24
  6. Step 6: Final answer
    x = 9,047.29

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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.