Home / 21,902.04-32,838.08-7,861.76

Finding the Fourth Proportional to 21,902.04, 32,838.08 and 7,861.76

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Solution

The fourth proportional to 21,902.04, 32,838.08 and 7,861.76 is: 11,787.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,902.04 : 32,838.08 = 7,861.76 : x
  2. Step 2: Convert to fraction form
    21,902.04/32,838.08 = 7,861.76/x
  3. Step 3: Cross multiply
    21,902.04x = 32,838.08 × 7,861.76
  4. Step 4: Simplify right side
    21,902.04x = 258,164,900.32
  5. Step 5: Solve for x
    x = 258,164,900.32/21,902.04
  6. Step 6: Final answer
    x = 11,787.25

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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.