Home / 27,906.99-38,521.76-18,478.59

Finding the Fourth Proportional to 27,906.99, 38,521.76 and 18,478.59

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Solution

The fourth proportional to 27,906.99, 38,521.76 and 18,478.59 is: 25,507.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,906.99 : 38,521.76 = 18,478.59 : x
  2. Step 2: Convert to fraction form
    27,906.99/38,521.76 = 18,478.59/x
  3. Step 3: Cross multiply
    27,906.99x = 38,521.76 × 18,478.59
  4. Step 4: Simplify right side
    27,906.99x = 711,827,716.73
  5. Step 5: Solve for x
    x = 711,827,716.73/27,906.99
  6. Step 6: Final answer
    x = 25,507.15

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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.