Home / 27,949.65-38,550.98-18,981.57

Finding the Fourth Proportional to 27,949.65, 38,550.98 and 18,981.57

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Solution

The fourth proportional to 27,949.65, 38,550.98 and 18,981.57 is: 26,181.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,949.65 : 38,550.98 = 18,981.57 : x
  2. Step 2: Convert to fraction form
    27,949.65/38,550.98 = 18,981.57/x
  3. Step 3: Cross multiply
    27,949.65x = 38,550.98 × 18,981.57
  4. Step 4: Simplify right side
    27,949.65x = 731,758,030.53
  5. Step 5: Solve for x
    x = 731,758,030.53/27,949.65
  6. Step 6: Final answer
    x = 26,181.29

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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.