Home / 21,332.50-29,436.84-12,377.96

Finding the Fourth Proportional to 21,332.50, 29,436.84 and 12,377.96

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Solution

The fourth proportional to 21,332.50, 29,436.84 and 12,377.96 is: 17,080.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.50 : 29,436.84 = 12,377.96 : x
  2. Step 2: Convert to fraction form
    21,332.50/29,436.84 = 12,377.96/x
  3. Step 3: Cross multiply
    21,332.50x = 29,436.84 × 12,377.96
  4. Step 4: Simplify right side
    21,332.50x = 364,368,028.05
  5. Step 5: Solve for x
    x = 364,368,028.05/21,332.50
  6. Step 6: Final answer
    x = 17,080.42

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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.