Home / 27,737.78-38,268.78-15,792.66

Finding the Fourth Proportional to 27,737.78, 38,268.78 and 15,792.66

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Solution

The fourth proportional to 27,737.78, 38,268.78 and 15,792.66 is: 21,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,737.78 : 38,268.78 = 15,792.66 : x
  2. Step 2: Convert to fraction form
    27,737.78/38,268.78 = 15,792.66/x
  3. Step 3: Cross multiply
    27,737.78x = 38,268.78 × 15,792.66
  4. Step 4: Simplify right side
    27,737.78x = 604,365,831.15
  5. Step 5: Solve for x
    x = 604,365,831.15/27,737.78
  6. Step 6: Final answer
    x = 21,788.55

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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.