Home / 20,448.84-28,218.66-11,497.18

Finding the Fourth Proportional to 20,448.84, 28,218.66 and 11,497.18

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Solution

The fourth proportional to 20,448.84, 28,218.66 and 11,497.18 is: 15,865.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448.84 : 28,218.66 = 11,497.18 : x
  2. Step 2: Convert to fraction form
    20,448.84/28,218.66 = 11,497.18/x
  3. Step 3: Cross multiply
    20,448.84x = 28,218.66 × 11,497.18
  4. Step 4: Simplify right side
    20,448.84x = 324,435,013.38
  5. Step 5: Solve for x
    x = 324,435,013.38/20,448.84
  6. Step 6: Final answer
    x = 15,865.69

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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.