Home / 20,359.18-30,531.56-9,684.28

Finding the Fourth Proportional to 20,359.18, 30,531.56 and 9,684.28

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Solution

The fourth proportional to 20,359.18, 30,531.56 and 9,684.28 is: 14,522.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.18 : 30,531.56 = 9,684.28 : x
  2. Step 2: Convert to fraction form
    20,359.18/30,531.56 = 9,684.28/x
  3. Step 3: Cross multiply
    20,359.18x = 30,531.56 × 9,684.28
  4. Step 4: Simplify right side
    20,359.18x = 295,676,175.88
  5. Step 5: Solve for x
    x = 295,676,175.88/20,359.18
  6. Step 6: Final answer
    x = 14,522.99

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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.