Home / 39,948.65-55,128.75-22,043.81

Finding the Fourth Proportional to 39,948.65, 55,128.75 and 22,043.81

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Solution

The fourth proportional to 39,948.65, 55,128.75 and 22,043.81 is: 30,420.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,948.65 : 55,128.75 = 22,043.81 : x
  2. Step 2: Convert to fraction form
    39,948.65/55,128.75 = 22,043.81/x
  3. Step 3: Cross multiply
    39,948.65x = 55,128.75 × 22,043.81
  4. Step 4: Simplify right side
    39,948.65x = 1,215,247,690.54
  5. Step 5: Solve for x
    x = 1,215,247,690.54/39,948.65
  6. Step 6: Final answer
    x = 30,420.24

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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.