Home / 21,799.64-30,082.92-12,368

Finding the Fourth Proportional to 21,799.64, 30,082.92 and 12,368

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Solution

The fourth proportional to 21,799.64, 30,082.92 and 12,368 is: 17,067.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.64 : 30,082.92 = 12,368 : x
  2. Step 2: Convert to fraction form
    21,799.64/30,082.92 = 12,368/x
  3. Step 3: Cross multiply
    21,799.64x = 30,082.92 × 12,368
  4. Step 4: Simplify right side
    21,799.64x = 372,065,554.56
  5. Step 5: Solve for x
    x = 372,065,554.56/21,799.64
  6. Step 6: Final answer
    x = 17,067.51

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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.