Home / 20,724.60-31,062.56-9,607.89

Finding the Fourth Proportional to 20,724.60, 31,062.56 and 9,607.89

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Solution

The fourth proportional to 20,724.60, 31,062.56 and 9,607.89 is: 14,400.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.60 : 31,062.56 = 9,607.89 : x
  2. Step 2: Convert to fraction form
    20,724.60/31,062.56 = 9,607.89/x
  3. Step 3: Cross multiply
    20,724.60x = 31,062.56 × 9,607.89
  4. Step 4: Simplify right side
    20,724.60x = 298,445,611.56
  5. Step 5: Solve for x
    x = 298,445,611.56/20,724.60
  6. Step 6: Final answer
    x = 14,400.55

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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.