Home / 40,287.78-55,595.12-22,383.81

Finding the Fourth Proportional to 40,287.78, 55,595.12 and 22,383.81

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Solution

The fourth proportional to 40,287.78, 55,595.12 and 22,383.81 is: 30,888.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,287.78 : 55,595.12 = 22,383.81 : x
  2. Step 2: Convert to fraction form
    40,287.78/55,595.12 = 22,383.81/x
  3. Step 3: Cross multiply
    40,287.78x = 55,595.12 × 22,383.81
  4. Step 4: Simplify right side
    40,287.78x = 1,244,430,491.09
  5. Step 5: Solve for x
    x = 1,244,430,491.09/40,287.78
  6. Step 6: Final answer
    x = 30,888.53

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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.