Home / 39,905.62-59,895.36-20,198.02

Finding the Fourth Proportional to 39,905.62, 59,895.36 and 20,198.02

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Solution

The fourth proportional to 39,905.62, 59,895.36 and 20,198.02 is: 30,315.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905.62 : 59,895.36 = 20,198.02 : x
  2. Step 2: Convert to fraction form
    39,905.62/59,895.36 = 20,198.02/x
  3. Step 3: Cross multiply
    39,905.62x = 59,895.36 × 20,198.02
  4. Step 4: Simplify right side
    39,905.62x = 1,209,767,679.19
  5. Step 5: Solve for x
    x = 1,209,767,679.19/39,905.62
  6. Step 6: Final answer
    x = 30,315.72

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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.