Home / 20,650.56-30,976-5,068.32

Finding the Fourth Proportional to 20,650.56, 30,976 and 5,068.32

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Solution

The fourth proportional to 20,650.56, 30,976 and 5,068.32 is: 7,602.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.56 : 30,976 = 5,068.32 : x
  2. Step 2: Convert to fraction form
    20,650.56/30,976 = 5,068.32/x
  3. Step 3: Cross multiply
    20,650.56x = 30,976 × 5,068.32
  4. Step 4: Simplify right side
    20,650.56x = 156,996,280.32
  5. Step 5: Solve for x
    x = 156,996,280.32/20,650.56
  6. Step 6: Final answer
    x = 7,602.52

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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.