Home / 21,264-29,345.07-12,191.04

Finding the Fourth Proportional to 21,264, 29,345.07 and 12,191.04

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Solution

The fourth proportional to 21,264, 29,345.07 and 12,191.04 is: 16,824.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264 : 29,345.07 = 12,191.04 : x
  2. Step 2: Convert to fraction form
    21,264/29,345.07 = 12,191.04/x
  3. Step 3: Cross multiply
    21,264x = 29,345.07 × 12,191.04
  4. Step 4: Simplify right side
    21,264x = 357,746,922.17
  5. Step 5: Solve for x
    x = 357,746,922.17/21,264
  6. Step 6: Final answer
    x = 16,824.07

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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.