Home / 39,295.80-58,943.84-20,581.36

Finding the Fourth Proportional to 39,295.80, 58,943.84 and 20,581.36

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Solution

The fourth proportional to 39,295.80, 58,943.84 and 20,581.36 is: 30,872.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,295.80 : 58,943.84 = 20,581.36 : x
  2. Step 2: Convert to fraction form
    39,295.80/58,943.84 = 20,581.36/x
  3. Step 3: Cross multiply
    39,295.80x = 58,943.84 × 20,581.36
  4. Step 4: Simplify right side
    39,295.80x = 1,213,144,390.82
  5. Step 5: Solve for x
    x = 1,213,144,390.82/39,295.80
  6. Step 6: Final answer
    x = 30,872.11

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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.