Home / 20,405.28-30,605.02-6,552.48

Finding the Fourth Proportional to 20,405.28, 30,605.02 and 6,552.48

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Solution

The fourth proportional to 20,405.28, 30,605.02 and 6,552.48 is: 9,827.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405.28 : 30,605.02 = 6,552.48 : x
  2. Step 2: Convert to fraction form
    20,405.28/30,605.02 = 6,552.48/x
  3. Step 3: Cross multiply
    20,405.28x = 30,605.02 × 6,552.48
  4. Step 4: Simplify right side
    20,405.28x = 200,538,781.45
  5. Step 5: Solve for x
    x = 200,538,781.45/20,405.28
  6. Step 6: Final answer
    x = 9,827.79

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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.