Home / 20,068.90-30,103.56-8,382.10

Finding the Fourth Proportional to 20,068.90, 30,103.56 and 8,382.10

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Solution

The fourth proportional to 20,068.90, 30,103.56 and 8,382.10 is: 12,573.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.90 : 30,103.56 = 8,382.10 : x
  2. Step 2: Convert to fraction form
    20,068.90/30,103.56 = 8,382.10/x
  3. Step 3: Cross multiply
    20,068.90x = 30,103.56 × 8,382.10
  4. Step 4: Simplify right side
    20,068.90x = 252,331,050.28
  5. Step 5: Solve for x
    x = 252,331,050.28/20,068.90
  6. Step 6: Final answer
    x = 12,573.24

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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.