Home / 39,890.36-55,044.24-22,890.08

Finding the Fourth Proportional to 39,890.36, 55,044.24 and 22,890.08

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Solution

The fourth proportional to 39,890.36, 55,044.24 and 22,890.08 is: 31,585.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,890.36 : 55,044.24 = 22,890.08 : x
  2. Step 2: Convert to fraction form
    39,890.36/55,044.24 = 22,890.08/x
  3. Step 3: Cross multiply
    39,890.36x = 55,044.24 × 22,890.08
  4. Step 4: Simplify right side
    39,890.36x = 1,259,967,057.14
  5. Step 5: Solve for x
    x = 1,259,967,057.14/39,890.36
  6. Step 6: Final answer
    x = 31,585.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.