Home / 39,180.72-58,775.76-18,399.36

Finding the Fourth Proportional to 39,180.72, 58,775.76 and 18,399.36

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Solution

The fourth proportional to 39,180.72, 58,775.76 and 18,399.36 is: 27,601.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,180.72 : 58,775.76 = 18,399.36 : x
  2. Step 2: Convert to fraction form
    39,180.72/58,775.76 = 18,399.36/x
  3. Step 3: Cross multiply
    39,180.72x = 58,775.76 × 18,399.36
  4. Step 4: Simplify right side
    39,180.72x = 1,081,436,367.51
  5. Step 5: Solve for x
    x = 1,081,436,367.51/39,180.72
  6. Step 6: Final answer
    x = 27,601.24

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1.5x scale

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.