Home / 21,110.28-31,680.99-10,016.94

Finding the Fourth Proportional to 21,110.28, 31,680.99 and 10,016.94

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Solution

The fourth proportional to 21,110.28, 31,680.99 and 10,016.94 is: 15,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,110.28 : 31,680.99 = 10,016.94 : x
  2. Step 2: Convert to fraction form
    21,110.28/31,680.99 = 10,016.94/x
  3. Step 3: Cross multiply
    21,110.28x = 31,680.99 × 10,016.94
  4. Step 4: Simplify right side
    21,110.28x = 317,346,575.97
  5. Step 5: Solve for x
    x = 317,346,575.97/21,110.28
  6. Step 6: Final answer
    x = 15,032.80

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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.