Home / 21,315.38-29,414.99-12,242.22

Finding the Fourth Proportional to 21,315.38, 29,414.99 and 12,242.22

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Solution

The fourth proportional to 21,315.38, 29,414.99 and 12,242.22 is: 16,894.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315.38 : 29,414.99 = 12,242.22 : x
  2. Step 2: Convert to fraction form
    21,315.38/29,414.99 = 12,242.22/x
  3. Step 3: Cross multiply
    21,315.38x = 29,414.99 × 12,242.22
  4. Step 4: Simplify right side
    21,315.38x = 360,104,717.67
  5. Step 5: Solve for x
    x = 360,104,717.67/21,315.38
  6. Step 6: Final answer
    x = 16,894.13

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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.