Home / 22,911.27-31,541.44-20,549.31

Finding the Fourth Proportional to 22,911.27, 31,541.44 and 20,549.31

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Solution

The fourth proportional to 22,911.27, 31,541.44 and 20,549.31 is: 28,289.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,911.27 : 31,541.44 = 20,549.31 : x
  2. Step 2: Convert to fraction form
    22,911.27/31,541.44 = 20,549.31/x
  3. Step 3: Cross multiply
    22,911.27x = 31,541.44 × 20,549.31
  4. Step 4: Simplify right side
    22,911.27x = 648,154,828.41
  5. Step 5: Solve for x
    x = 648,154,828.41/22,911.27
  6. Step 6: Final answer
    x = 28,289.78

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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.