Home / 39,979.72-59,919.18-20,263.24

Finding the Fourth Proportional to 39,979.72, 59,919.18 and 20,263.24

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Solution

The fourth proportional to 39,979.72, 59,919.18 and 20,263.24 is: 30,369.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,979.72 : 59,919.18 = 20,263.24 : x
  2. Step 2: Convert to fraction form
    39,979.72/59,919.18 = 20,263.24/x
  3. Step 3: Cross multiply
    39,979.72x = 59,919.18 × 20,263.24
  4. Step 4: Simplify right side
    39,979.72x = 1,214,156,724.94
  5. Step 5: Solve for x
    x = 1,214,156,724.94/39,979.72
  6. Step 6: Final answer
    x = 30,369.32

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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.