Home / 39,206.08-58,822.80-18,431.20

Finding the Fourth Proportional to 39,206.08, 58,822.80 and 18,431.20

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Solution

The fourth proportional to 39,206.08, 58,822.80 and 18,431.20 is: 27,653.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,206.08 : 58,822.80 = 18,431.20 : x
  2. Step 2: Convert to fraction form
    39,206.08/58,822.80 = 18,431.20/x
  3. Step 3: Cross multiply
    39,206.08x = 58,822.80 × 18,431.20
  4. Step 4: Simplify right side
    39,206.08x = 1,084,174,791.36
  5. Step 5: Solve for x
    x = 1,084,174,791.36/39,206.08
  6. Step 6: Final answer
    x = 27,653.23

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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.