Home / 28,104.50-38,767.24-18,540.99

Finding the Fourth Proportional to 28,104.50, 38,767.24 and 18,540.99

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Solution

The fourth proportional to 28,104.50, 38,767.24 and 18,540.99 is: 25,575.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.50 : 38,767.24 = 18,540.99 : x
  2. Step 2: Convert to fraction form
    28,104.50/38,767.24 = 18,540.99/x
  3. Step 3: Cross multiply
    28,104.50x = 38,767.24 × 18,540.99
  4. Step 4: Simplify right side
    28,104.50x = 718,783,009.17
  5. Step 5: Solve for x
    x = 718,783,009.17/28,104.50
  6. Step 6: Final answer
    x = 25,575.37

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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.