Home / 39,070.78-53,921.01-22,078.15

Finding the Fourth Proportional to 39,070.78, 53,921.01 and 22,078.15

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Solution

The fourth proportional to 39,070.78, 53,921.01 and 22,078.15 is: 30,469.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,070.78 : 53,921.01 = 22,078.15 : x
  2. Step 2: Convert to fraction form
    39,070.78/53,921.01 = 22,078.15/x
  3. Step 3: Cross multiply
    39,070.78x = 53,921.01 × 22,078.15
  4. Step 4: Simplify right side
    39,070.78x = 1,190,476,146.93
  5. Step 5: Solve for x
    x = 1,190,476,146.93/39,070.78
  6. Step 6: Final answer
    x = 30,469.73

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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.