Home / 20,148.86-27,805.74-11,196.74

Finding the Fourth Proportional to 20,148.86, 27,805.74 and 11,196.74

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Solution

The fourth proportional to 20,148.86, 27,805.74 and 11,196.74 is: 15,451.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.86 : 27,805.74 = 11,196.74 : x
  2. Step 2: Convert to fraction form
    20,148.86/27,805.74 = 11,196.74/x
  3. Step 3: Cross multiply
    20,148.86x = 27,805.74 × 11,196.74
  4. Step 4: Simplify right side
    20,148.86x = 311,333,641.29
  5. Step 5: Solve for x
    x = 311,333,641.29/20,148.86
  6. Step 6: Final answer
    x = 15,451.68

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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.