Home / 42,290.70-58,361.14-23,171.72

Finding the Fourth Proportional to 42,290.70, 58,361.14 and 23,171.72

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Solution

The fourth proportional to 42,290.70, 58,361.14 and 23,171.72 is: 31,976.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,290.70 : 58,361.14 = 23,171.72 : x
  2. Step 2: Convert to fraction form
    42,290.70/58,361.14 = 23,171.72/x
  3. Step 3: Cross multiply
    42,290.70x = 58,361.14 × 23,171.72
  4. Step 4: Simplify right side
    42,290.70x = 1,352,327,703.16
  5. Step 5: Solve for x
    x = 1,352,327,703.16/42,290.70
  6. Step 6: Final answer
    x = 31,976.95

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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.