Home / 21,376.49-32,056.52-8,902.40

Finding the Fourth Proportional to 21,376.49, 32,056.52 and 8,902.40

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Solution

The fourth proportional to 21,376.49, 32,056.52 and 8,902.40 is: 13,350.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.49 : 32,056.52 = 8,902.40 : x
  2. Step 2: Convert to fraction form
    21,376.49/32,056.52 = 8,902.40/x
  3. Step 3: Cross multiply
    21,376.49x = 32,056.52 × 8,902.40
  4. Step 4: Simplify right side
    21,376.49x = 285,379,758.85
  5. Step 5: Solve for x
    x = 285,379,758.85/21,376.49
  6. Step 6: Final answer
    x = 13,350.17

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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.