Home / 27,911.16-38,503.89-18,487.62

Finding the Fourth Proportional to 27,911.16, 38,503.89 and 18,487.62

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Solution

The fourth proportional to 27,911.16, 38,503.89 and 18,487.62 is: 25,503.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.16 : 38,503.89 = 18,487.62 : x
  2. Step 2: Convert to fraction form
    27,911.16/38,503.89 = 18,487.62/x
  3. Step 3: Cross multiply
    27,911.16x = 38,503.89 × 18,487.62
  4. Step 4: Simplify right side
    27,911.16x = 711,845,286.84
  5. Step 5: Solve for x
    x = 711,845,286.84/27,911.16
  6. Step 6: Final answer
    x = 25,503.97

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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.