Home / 39,751.15-54,853.93-21,845.77

Finding the Fourth Proportional to 39,751.15, 54,853.93 and 21,845.77

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Solution

The fourth proportional to 39,751.15, 54,853.93 and 21,845.77 is: 30,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,751.15 : 54,853.93 = 21,845.77 : x
  2. Step 2: Convert to fraction form
    39,751.15/54,853.93 = 21,845.77/x
  3. Step 3: Cross multiply
    39,751.15x = 54,853.93 × 21,845.77
  4. Step 4: Simplify right side
    39,751.15x = 1,198,326,338.38
  5. Step 5: Solve for x
    x = 1,198,326,338.38/39,751.15
  6. Step 6: Final answer
    x = 30,145.70

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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.