Home / 20,693.84-28,557.54-11,262.38

Finding the Fourth Proportional to 20,693.84, 28,557.54 and 11,262.38

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Solution

The fourth proportional to 20,693.84, 28,557.54 and 11,262.38 is: 15,542.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693.84 : 28,557.54 = 11,262.38 : x
  2. Step 2: Convert to fraction form
    20,693.84/28,557.54 = 11,262.38/x
  3. Step 3: Cross multiply
    20,693.84x = 28,557.54 × 11,262.38
  4. Step 4: Simplify right side
    20,693.84x = 321,625,867.35
  5. Step 5: Solve for x
    x = 321,625,867.35/20,693.84
  6. Step 6: Final answer
    x = 15,542.11

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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.