Home / 20,842.68-31,331.79-16,727.76

Finding the Fourth Proportional to 20,842.68, 31,331.79 and 16,727.76

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Solution

The fourth proportional to 20,842.68, 31,331.79 and 16,727.76 is: 25,146.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842.68 : 31,331.79 = 16,727.76 : x
  2. Step 2: Convert to fraction form
    20,842.68/31,331.79 = 16,727.76/x
  3. Step 3: Cross multiply
    20,842.68x = 31,331.79 × 16,727.76
  4. Step 4: Simplify right side
    20,842.68x = 524,110,663.49
  5. Step 5: Solve for x
    x = 524,110,663.49/20,842.68
  6. Step 6: Final answer
    x = 25,146.03

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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.