Home / 28,184.92-38,886.42-18,755.08

Finding the Fourth Proportional to 28,184.92, 38,886.42 and 18,755.08

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Solution

The fourth proportional to 28,184.92, 38,886.42 and 18,755.08 is: 25,876.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,184.92 : 38,886.42 = 18,755.08 : x
  2. Step 2: Convert to fraction form
    28,184.92/38,886.42 = 18,755.08/x
  3. Step 3: Cross multiply
    28,184.92x = 38,886.42 × 18,755.08
  4. Step 4: Simplify right side
    28,184.92x = 729,317,918.01
  5. Step 5: Solve for x
    x = 729,317,918.01/28,184.92
  6. Step 6: Final answer
    x = 25,876.17

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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.