Home / 28,869.72-39,831.50-16,767.86

Finding the Fourth Proportional to 28,869.72, 39,831.50 and 16,767.86

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Solution

The fourth proportional to 28,869.72, 39,831.50 and 16,767.86 is: 23,134.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,869.72 : 39,831.50 = 16,767.86 : x
  2. Step 2: Convert to fraction form
    28,869.72/39,831.50 = 16,767.86/x
  3. Step 3: Cross multiply
    28,869.72x = 39,831.50 × 16,767.86
  4. Step 4: Simplify right side
    28,869.72x = 667,888,988.09
  5. Step 5: Solve for x
    x = 667,888,988.09/28,869.72
  6. Step 6: Final answer
    x = 23,134.59

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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.