Home / 21,800.04-30,084.18-11,864.04

Finding the Fourth Proportional to 21,800.04, 30,084.18 and 11,864.04

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Solution

The fourth proportional to 21,800.04, 30,084.18 and 11,864.04 is: 16,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800.04 : 30,084.18 = 11,864.04 : x
  2. Step 2: Convert to fraction form
    21,800.04/30,084.18 = 11,864.04/x
  3. Step 3: Cross multiply
    21,800.04x = 30,084.18 × 11,864.04
  4. Step 4: Simplify right side
    21,800.04x = 356,919,914.89
  5. Step 5: Solve for x
    x = 356,919,914.89/21,800.04
  6. Step 6: Final answer
    x = 16,372.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.