Home / 39,911-55,077.18-23,158.04

Finding the Fourth Proportional to 39,911, 55,077.18 and 23,158.04

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Solution

The fourth proportional to 39,911, 55,077.18 and 23,158.04 is: 31,958.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,911 : 55,077.18 = 23,158.04 : x
  2. Step 2: Convert to fraction form
    39,911/55,077.18 = 23,158.04/x
  3. Step 3: Cross multiply
    39,911x = 55,077.18 × 23,158.04
  4. Step 4: Simplify right side
    39,911x = 1,275,479,537.53
  5. Step 5: Solve for x
    x = 1,275,479,537.53/39,911
  6. Step 6: Final answer
    x = 31,958.10

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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.