Home / 27,792.92-38,350.66-15,855.56

Finding the Fourth Proportional to 27,792.92, 38,350.66 and 15,855.56

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Solution

The fourth proportional to 27,792.92, 38,350.66 and 15,855.56 is: 21,878.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,792.92 : 38,350.66 = 15,855.56 : x
  2. Step 2: Convert to fraction form
    27,792.92/38,350.66 = 15,855.56/x
  3. Step 3: Cross multiply
    27,792.92x = 38,350.66 × 15,855.56
  4. Step 4: Simplify right side
    27,792.92x = 608,071,190.67
  5. Step 5: Solve for x
    x = 608,071,190.67/27,792.92
  6. Step 6: Final answer
    x = 21,878.64

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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.