Home / 21,518.60-32,281.54-6,724.61

Finding the Fourth Proportional to 21,518.60, 32,281.54 and 6,724.61

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Solution

The fourth proportional to 21,518.60, 32,281.54 and 6,724.61 is: 10,088.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,518.60 : 32,281.54 = 6,724.61 : x
  2. Step 2: Convert to fraction form
    21,518.60/32,281.54 = 6,724.61/x
  3. Step 3: Cross multiply
    21,518.60x = 32,281.54 × 6,724.61
  4. Step 4: Simplify right side
    21,518.60x = 217,080,766.70
  5. Step 5: Solve for x
    x = 217,080,766.70/21,518.60
  6. Step 6: Final answer
    x = 10,088.05

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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.