Home / 20,073.08-27,701.82-12,115.16

Finding the Fourth Proportional to 20,073.08, 27,701.82 and 12,115.16

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Solution

The fourth proportional to 20,073.08, 27,701.82 and 12,115.16 is: 16,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.08 : 27,701.82 = 12,115.16 : x
  2. Step 2: Convert to fraction form
    20,073.08/27,701.82 = 12,115.16/x
  3. Step 3: Cross multiply
    20,073.08x = 27,701.82 × 12,115.16
  4. Step 4: Simplify right side
    20,073.08x = 335,611,981.59
  5. Step 5: Solve for x
    x = 335,611,981.59/20,073.08
  6. Step 6: Final answer
    x = 16,719.51

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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.