Home / 20,612.88-30,921.56-6,569.60

Finding the Fourth Proportional to 20,612.88, 30,921.56 and 6,569.60

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Solution

The fourth proportional to 20,612.88, 30,921.56 and 6,569.60 is: 9,855.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612.88 : 30,921.56 = 6,569.60 : x
  2. Step 2: Convert to fraction form
    20,612.88/30,921.56 = 6,569.60/x
  3. Step 3: Cross multiply
    20,612.88x = 30,921.56 × 6,569.60
  4. Step 4: Simplify right side
    20,612.88x = 203,142,280.58
  5. Step 5: Solve for x
    x = 203,142,280.58/20,612.88
  6. Step 6: Final answer
    x = 9,855.11

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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.