Home / 21,446.60-29,595.53-11,886.90

Finding the Fourth Proportional to 21,446.60, 29,595.53 and 11,886.90

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Solution

The fourth proportional to 21,446.60, 29,595.53 and 11,886.90 is: 16,403.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,446.60 : 29,595.53 = 11,886.90 : x
  2. Step 2: Convert to fraction form
    21,446.60/29,595.53 = 11,886.90/x
  3. Step 3: Cross multiply
    21,446.60x = 29,595.53 × 11,886.90
  4. Step 4: Simplify right side
    21,446.60x = 351,799,046.12
  5. Step 5: Solve for x
    x = 351,799,046.12/21,446.60
  6. Step 6: Final answer
    x = 16,403.49

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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.