Home / 28,831.68-39,672.18-22,114.62

Finding the Fourth Proportional to 28,831.68, 39,672.18 and 22,114.62

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Solution

The fourth proportional to 28,831.68, 39,672.18 and 22,114.62 is: 30,429.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.68 : 39,672.18 = 22,114.62 : x
  2. Step 2: Convert to fraction form
    28,831.68/39,672.18 = 22,114.62/x
  3. Step 3: Cross multiply
    28,831.68x = 39,672.18 × 22,114.62
  4. Step 4: Simplify right side
    28,831.68x = 877,335,185.27
  5. Step 5: Solve for x
    x = 877,335,185.27/28,831.68
  6. Step 6: Final answer
    x = 30,429.55

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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.