Home / 21,306.03-29,403.32-11,874.66

Finding the Fourth Proportional to 21,306.03, 29,403.32 and 11,874.66

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Solution

The fourth proportional to 21,306.03, 29,403.32 and 11,874.66 is: 16,387.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306.03 : 29,403.32 = 11,874.66 : x
  2. Step 2: Convert to fraction form
    21,306.03/29,403.32 = 11,874.66/x
  3. Step 3: Cross multiply
    21,306.03x = 29,403.32 × 11,874.66
  4. Step 4: Simplify right side
    21,306.03x = 349,154,457.56
  5. Step 5: Solve for x
    x = 349,154,457.56/21,306.03
  6. Step 6: Final answer
    x = 16,387.59

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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.