Home / 21,904.40-32,864.70-8,766.20

Finding the Fourth Proportional to 21,904.40, 32,864.70 and 8,766.20

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Solution

The fourth proportional to 21,904.40, 32,864.70 and 8,766.20 is: 13,152.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.40 : 32,864.70 = 8,766.20 : x
  2. Step 2: Convert to fraction form
    21,904.40/32,864.70 = 8,766.20/x
  3. Step 3: Cross multiply
    21,904.40x = 32,864.70 × 8,766.20
  4. Step 4: Simplify right side
    21,904.40x = 288,098,533.14
  5. Step 5: Solve for x
    x = 288,098,533.14/21,904.40
  6. Step 6: Final answer
    x = 13,152.54

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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.