Home / 21,282.82-31,924.23-10,888.90

Finding the Fourth Proportional to 21,282.82, 31,924.23 and 10,888.90

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Solution

The fourth proportional to 21,282.82, 31,924.23 and 10,888.90 is: 16,333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.82 : 31,924.23 = 10,888.90 : x
  2. Step 2: Convert to fraction form
    21,282.82/31,924.23 = 10,888.90/x
  3. Step 3: Cross multiply
    21,282.82x = 31,924.23 × 10,888.90
  4. Step 4: Simplify right side
    21,282.82x = 347,619,748.05
  5. Step 5: Solve for x
    x = 347,619,748.05/21,282.82
  6. Step 6: Final answer
    x = 16,333.35

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.