Home / 17,831.64-26,788.47-12,578.74

Finding the Fourth Proportional to 17,831.64, 26,788.47 and 12,578.74

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Solution

The fourth proportional to 17,831.64, 26,788.47 and 12,578.74 is: 18,897.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,831.64 : 26,788.47 = 12,578.74 : x
  2. Step 2: Convert to fraction form
    17,831.64/26,788.47 = 12,578.74/x
  3. Step 3: Cross multiply
    17,831.64x = 26,788.47 × 12,578.74
  4. Step 4: Simplify right side
    17,831.64x = 336,965,306.43
  5. Step 5: Solve for x
    x = 336,965,306.43/17,831.64
  6. Step 6: Final answer
    x = 18,897.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.