Home / 39,791.16-54,913.14-21,886.92

Finding the Fourth Proportional to 39,791.16, 54,913.14 and 21,886.92

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Solution

The fourth proportional to 39,791.16, 54,913.14 and 21,886.92 is: 30,204.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,791.16 : 54,913.14 = 21,886.92 : x
  2. Step 2: Convert to fraction form
    39,791.16/54,913.14 = 21,886.92/x
  3. Step 3: Cross multiply
    39,791.16x = 54,913.14 × 21,886.92
  4. Step 4: Simplify right side
    39,791.16x = 1,201,879,502.13
  5. Step 5: Solve for x
    x = 1,201,879,502.13/39,791.16
  6. Step 6: Final answer
    x = 30,204.69

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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.