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Finding the Fourth Proportional to 22,652.48, 31,139.62 and 20,237.12

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Solution

The fourth proportional to 22,652.48, 31,139.62 and 20,237.12 is: 27,819.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,652.48 : 31,139.62 = 20,237.12 : x
  2. Step 2: Convert to fraction form
    22,652.48/31,139.62 = 20,237.12/x
  3. Step 3: Cross multiply
    22,652.48x = 31,139.62 × 20,237.12
  4. Step 4: Simplify right side
    22,652.48x = 630,176,226.69
  5. Step 5: Solve for x
    x = 630,176,226.69/22,652.48
  6. Step 6: Final answer
    x = 27,819.30

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.