Home / 20,072.51-27,700.25-12,113.18

Finding the Fourth Proportional to 20,072.51, 27,700.25 and 12,113.18

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Solution

The fourth proportional to 20,072.51, 27,700.25 and 12,113.18 is: 16,716.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.51 : 27,700.25 = 12,113.18 : x
  2. Step 2: Convert to fraction form
    20,072.51/27,700.25 = 12,113.18/x
  3. Step 3: Cross multiply
    20,072.51x = 27,700.25 × 12,113.18
  4. Step 4: Simplify right side
    20,072.51x = 335,538,019.10
  5. Step 5: Solve for x
    x = 335,538,019.10/20,072.51
  6. Step 6: Final answer
    x = 16,716.30

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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.