Home / 28,831.94-39,788.13-16,256.66

Finding the Fourth Proportional to 28,831.94, 39,788.13 and 16,256.66

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Solution

The fourth proportional to 28,831.94, 39,788.13 and 16,256.66 is: 22,434.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.94 : 39,788.13 = 16,256.66 : x
  2. Step 2: Convert to fraction form
    28,831.94/39,788.13 = 16,256.66/x
  3. Step 3: Cross multiply
    28,831.94x = 39,788.13 × 16,256.66
  4. Step 4: Simplify right side
    28,831.94x = 646,822,101.45
  5. Step 5: Solve for x
    x = 646,822,101.45/28,831.94
  6. Step 6: Final answer
    x = 22,434.22

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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.