Home / 21,182.40-29,227.32-11,748.96

Finding the Fourth Proportional to 21,182.40, 29,227.32 and 11,748.96

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Solution

The fourth proportional to 21,182.40, 29,227.32 and 11,748.96 is: 16,211.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.40 : 29,227.32 = 11,748.96 : x
  2. Step 2: Convert to fraction form
    21,182.40/29,227.32 = 11,748.96/x
  3. Step 3: Cross multiply
    21,182.40x = 29,227.32 × 11,748.96
  4. Step 4: Simplify right side
    21,182.40x = 343,390,613.59
  5. Step 5: Solve for x
    x = 343,390,613.59/21,182.40
  6. Step 6: Final answer
    x = 16,211.13

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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.