Home / 39,705.20-59,559.04-19,972.96

Finding the Fourth Proportional to 39,705.20, 59,559.04 and 19,972.96

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Solution

The fourth proportional to 39,705.20, 59,559.04 and 19,972.96 is: 29,960.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,705.20 : 59,559.04 = 19,972.96 : x
  2. Step 2: Convert to fraction form
    39,705.20/59,559.04 = 19,972.96/x
  3. Step 3: Cross multiply
    39,705.20x = 59,559.04 × 19,972.96
  4. Step 4: Simplify right side
    39,705.20x = 1,189,570,323.56
  5. Step 5: Solve for x
    x = 1,189,570,323.56/39,705.20
  6. Step 6: Final answer
    x = 29,960.06

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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.