Home / 39,923.82-59,891.20-13,621.50

Finding the Fourth Proportional to 39,923.82, 59,891.20 and 13,621.50

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Solution

The fourth proportional to 39,923.82, 59,891.20 and 13,621.50 is: 20,434.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,923.82 : 59,891.20 = 13,621.50 : x
  2. Step 2: Convert to fraction form
    39,923.82/59,891.20 = 13,621.50/x
  3. Step 3: Cross multiply
    39,923.82x = 59,891.20 × 13,621.50
  4. Step 4: Simplify right side
    39,923.82x = 815,807,980.80
  5. Step 5: Solve for x
    x = 815,807,980.80/39,923.82
  6. Step 6: Final answer
    x = 20,434.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.