Home / 21,051.60-29,049.13-11,619.55

Finding the Fourth Proportional to 21,051.60, 29,049.13 and 11,619.55

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Solution

The fourth proportional to 21,051.60, 29,049.13 and 11,619.55 is: 16,033.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.60 : 29,049.13 = 11,619.55 : x
  2. Step 2: Convert to fraction form
    21,051.60/29,049.13 = 11,619.55/x
  3. Step 3: Cross multiply
    21,051.60x = 29,049.13 × 11,619.55
  4. Step 4: Simplify right side
    21,051.60x = 337,537,818.49
  5. Step 5: Solve for x
    x = 337,537,818.49/21,051.60
  6. Step 6: Final answer
    x = 16,033.83

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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.