Home / 20,449.28-30,650.88-10,068.32

Finding the Fourth Proportional to 20,449.28, 30,650.88 and 10,068.32

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Solution

The fourth proportional to 20,449.28, 30,650.88 and 10,068.32 is: 15,091.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.28 : 30,650.88 = 10,068.32 : x
  2. Step 2: Convert to fraction form
    20,449.28/30,650.88 = 10,068.32/x
  3. Step 3: Cross multiply
    20,449.28x = 30,650.88 × 10,068.32
  4. Step 4: Simplify right side
    20,449.28x = 308,602,868.12
  5. Step 5: Solve for x
    x = 308,602,868.12/20,449.28
  6. Step 6: Final answer
    x = 15,091.14

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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.