Home / 20,238.02-27,932.92-13,152.14

Finding the Fourth Proportional to 20,238.02, 27,932.92 and 13,152.14

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Solution

The fourth proportional to 20,238.02, 27,932.92 and 13,152.14 is: 18,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.02 : 27,932.92 = 13,152.14 : x
  2. Step 2: Convert to fraction form
    20,238.02/27,932.92 = 13,152.14/x
  3. Step 3: Cross multiply
    20,238.02x = 27,932.92 × 13,152.14
  4. Step 4: Simplify right side
    20,238.02x = 367,377,674.45
  5. Step 5: Solve for x
    x = 367,377,674.45/20,238.02
  6. Step 6: Final answer
    x = 18,152.85

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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.