Home / 21,056.68-31,592.22-9,378.04

Finding the Fourth Proportional to 21,056.68, 31,592.22 and 9,378.04

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Solution

The fourth proportional to 21,056.68, 31,592.22 and 9,378.04 is: 14,070.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056.68 : 31,592.22 = 9,378.04 : x
  2. Step 2: Convert to fraction form
    21,056.68/31,592.22 = 9,378.04/x
  3. Step 3: Cross multiply
    21,056.68x = 31,592.22 × 9,378.04
  4. Step 4: Simplify right side
    21,056.68x = 296,273,102.85
  5. Step 5: Solve for x
    x = 296,273,102.85/21,056.68
  6. Step 6: Final answer
    x = 14,070.27

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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.