Home / 20,277.14-27,981.25-11,325.22

Finding the Fourth Proportional to 20,277.14, 27,981.25 and 11,325.22

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Solution

The fourth proportional to 20,277.14, 27,981.25 and 11,325.22 is: 15,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.14 : 27,981.25 = 11,325.22 : x
  2. Step 2: Convert to fraction form
    20,277.14/27,981.25 = 11,325.22/x
  3. Step 3: Cross multiply
    20,277.14x = 27,981.25 × 11,325.22
  4. Step 4: Simplify right side
    20,277.14x = 316,893,713.86
  5. Step 5: Solve for x
    x = 316,893,713.86/20,277.14
  6. Step 6: Final answer
    x = 15,628.13

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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.