Home / 21,282.76-29,362.21-12,327

Finding the Fourth Proportional to 21,282.76, 29,362.21 and 12,327

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Solution

The fourth proportional to 21,282.76, 29,362.21 and 12,327 is: 17,006.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.76 : 29,362.21 = 12,327 : x
  2. Step 2: Convert to fraction form
    21,282.76/29,362.21 = 12,327/x
  3. Step 3: Cross multiply
    21,282.76x = 29,362.21 × 12,327
  4. Step 4: Simplify right side
    21,282.76x = 361,947,962.67
  5. Step 5: Solve for x
    x = 361,947,962.67/21,282.76
  6. Step 6: Final answer
    x = 17,006.63

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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.