Home / 42,040.87-58,016.79-23,178.67

Finding the Fourth Proportional to 42,040.87, 58,016.79 and 23,178.67

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Solution

The fourth proportional to 42,040.87, 58,016.79 and 23,178.67 is: 31,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,040.87 : 58,016.79 = 23,178.67 : x
  2. Step 2: Convert to fraction form
    42,040.87/58,016.79 = 23,178.67/x
  3. Step 3: Cross multiply
    42,040.87x = 58,016.79 × 23,178.67
  4. Step 4: Simplify right side
    42,040.87x = 1,344,752,029.87
  5. Step 5: Solve for x
    x = 1,344,752,029.87/42,040.87
  6. Step 6: Final answer
    x = 31,986.78

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1.5x scale

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.