Home / 39,149.58-54,022.77-22,155.38

Finding the Fourth Proportional to 39,149.58, 54,022.77 and 22,155.38

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Solution

The fourth proportional to 39,149.58, 54,022.77 and 22,155.38 is: 30,572.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,149.58 : 54,022.77 = 22,155.38 : x
  2. Step 2: Convert to fraction form
    39,149.58/54,022.77 = 22,155.38/x
  3. Step 3: Cross multiply
    39,149.58x = 54,022.77 × 22,155.38
  4. Step 4: Simplify right side
    39,149.58x = 1,196,894,727.89
  5. Step 5: Solve for x
    x = 1,196,894,727.89/39,149.58
  6. Step 6: Final answer
    x = 30,572.35

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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.