Home / 28,831.19-43,189.20-22,918.05

Finding the Fourth Proportional to 28,831.19, 43,189.20 and 22,918.05

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Solution

The fourth proportional to 28,831.19, 43,189.20 and 22,918.05 is: 34,331.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.19 : 43,189.20 = 22,918.05 : x
  2. Step 2: Convert to fraction form
    28,831.19/43,189.20 = 22,918.05/x
  3. Step 3: Cross multiply
    28,831.19x = 43,189.20 × 22,918.05
  4. Step 4: Simplify right side
    28,831.19x = 989,812,245.06
  5. Step 5: Solve for x
    x = 989,812,245.06/28,831.19
  6. Step 6: Final answer
    x = 34,331.31

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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.