Home / 21,776.15-30,049.22-14,712.14

Finding the Fourth Proportional to 21,776.15, 30,049.22 and 14,712.14

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Solution

The fourth proportional to 21,776.15, 30,049.22 and 14,712.14 is: 20,301.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,776.15 : 30,049.22 = 14,712.14 : x
  2. Step 2: Convert to fraction form
    21,776.15/30,049.22 = 14,712.14/x
  3. Step 3: Cross multiply
    21,776.15x = 30,049.22 × 14,712.14
  4. Step 4: Simplify right side
    21,776.15x = 442,088,107.72
  5. Step 5: Solve for x
    x = 442,088,107.72/21,776.15
  6. Step 6: Final answer
    x = 20,301.49

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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.