Home / 20,727.99-31,110.02-10,874.21

Finding the Fourth Proportional to 20,727.99, 31,110.02 and 10,874.21

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Solution

The fourth proportional to 20,727.99, 31,110.02 and 10,874.21 is: 16,320.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.99 : 31,110.02 = 10,874.21 : x
  2. Step 2: Convert to fraction form
    20,727.99/31,110.02 = 10,874.21/x
  3. Step 3: Cross multiply
    20,727.99x = 31,110.02 × 10,874.21
  4. Step 4: Simplify right side
    20,727.99x = 338,296,680.66
  5. Step 5: Solve for x
    x = 338,296,680.66/20,727.99
  6. Step 6: Final answer
    x = 16,320.77

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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.