Home / 39,280.12-58,843.42-31,399.22

Finding the Fourth Proportional to 39,280.12, 58,843.42 and 31,399.22

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Solution

The fourth proportional to 39,280.12, 58,843.42 and 31,399.22 is: 47,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,280.12 : 58,843.42 = 31,399.22 : x
  2. Step 2: Convert to fraction form
    39,280.12/58,843.42 = 31,399.22/x
  3. Step 3: Cross multiply
    39,280.12x = 58,843.42 × 31,399.22
  4. Step 4: Simplify right side
    39,280.12x = 1,847,637,490.13
  5. Step 5: Solve for x
    x = 1,847,637,490.13/39,280.12
  6. Step 6: Final answer
    x = 47,037.47

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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.