Home / 21,269.52-29,353.68-11,841.12

Finding the Fourth Proportional to 21,269.52, 29,353.68 and 11,841.12

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Solution

The fourth proportional to 21,269.52, 29,353.68 and 11,841.12 is: 16,341.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.52 : 29,353.68 = 11,841.12 : x
  2. Step 2: Convert to fraction form
    21,269.52/29,353.68 = 11,841.12/x
  3. Step 3: Cross multiply
    21,269.52x = 29,353.68 × 11,841.12
  4. Step 4: Simplify right side
    21,269.52x = 347,580,447.32
  5. Step 5: Solve for x
    x = 347,580,447.32/21,269.52
  6. Step 6: Final answer
    x = 16,341.72

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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.