Home / 20,966.06-31,442.60-7,824.62

Finding the Fourth Proportional to 20,966.06, 31,442.60 and 7,824.62

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Solution

The fourth proportional to 20,966.06, 31,442.60 and 7,824.62 is: 11,734.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.06 : 31,442.60 = 7,824.62 : x
  2. Step 2: Convert to fraction form
    20,966.06/31,442.60 = 7,824.62/x
  3. Step 3: Cross multiply
    20,966.06x = 31,442.60 × 7,824.62
  4. Step 4: Simplify right side
    20,966.06x = 246,026,200.48
  5. Step 5: Solve for x
    x = 246,026,200.48/20,966.06
  6. Step 6: Final answer
    x = 11,734.50

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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.