Home / 20,230.02-27,910.85-11,275.81

Finding the Fourth Proportional to 20,230.02, 27,910.85 and 11,275.81

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Solution

The fourth proportional to 20,230.02, 27,910.85 and 11,275.81 is: 15,556.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.02 : 27,910.85 = 11,275.81 : x
  2. Step 2: Convert to fraction form
    20,230.02/27,910.85 = 11,275.81/x
  3. Step 3: Cross multiply
    20,230.02x = 27,910.85 × 11,275.81
  4. Step 4: Simplify right side
    20,230.02x = 314,717,315.38
  5. Step 5: Solve for x
    x = 314,717,315.38/20,230.02
  6. Step 6: Final answer
    x = 15,556.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.