Home / 39,165.13-54,032.74-22,165.47

Finding the Fourth Proportional to 39,165.13, 54,032.74 and 22,165.47

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Solution

The fourth proportional to 39,165.13, 54,032.74 and 22,165.47 is: 30,579.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,165.13 : 54,032.74 = 22,165.47 : x
  2. Step 2: Convert to fraction form
    39,165.13/54,032.74 = 22,165.47/x
  3. Step 3: Cross multiply
    39,165.13x = 54,032.74 × 22,165.47
  4. Step 4: Simplify right side
    39,165.13x = 1,197,661,174.04
  5. Step 5: Solve for x
    x = 1,197,661,174.04/39,165.13
  6. Step 6: Final answer
    x = 30,579.78

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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.