Home / 21,379.97-32,076.93-10,287.56

Finding the Fourth Proportional to 21,379.97, 32,076.93 and 10,287.56

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Solution

The fourth proportional to 21,379.97, 32,076.93 and 10,287.56 is: 15,434.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,379.97 : 32,076.93 = 10,287.56 : x
  2. Step 2: Convert to fraction form
    21,379.97/32,076.93 = 10,287.56/x
  3. Step 3: Cross multiply
    21,379.97x = 32,076.93 × 10,287.56
  4. Step 4: Simplify right side
    21,379.97x = 329,993,341.99
  5. Step 5: Solve for x
    x = 329,993,341.99/21,379.97
  6. Step 6: Final answer
    x = 15,434.70

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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.