Home / 21,273.04-29,353.20-12,319

Finding the Fourth Proportional to 21,273.04, 29,353.20 and 12,319

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Solution

The fourth proportional to 21,273.04, 29,353.20 and 12,319 is: 16,998.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.04 : 29,353.20 = 12,319 : x
  2. Step 2: Convert to fraction form
    21,273.04/29,353.20 = 12,319/x
  3. Step 3: Cross multiply
    21,273.04x = 29,353.20 × 12,319
  4. Step 4: Simplify right side
    21,273.04x = 361,602,070.80
  5. Step 5: Solve for x
    x = 361,602,070.80/21,273.04
  6. Step 6: Final answer
    x = 16,998.14

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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.