Home / 39,921.86-55,091.40-22,018.52

Finding the Fourth Proportional to 39,921.86, 55,091.40 and 22,018.52

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Solution

The fourth proportional to 39,921.86, 55,091.40 and 22,018.52 is: 30,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,921.86 : 55,091.40 = 22,018.52 : x
  2. Step 2: Convert to fraction form
    39,921.86/55,091.40 = 22,018.52/x
  3. Step 3: Cross multiply
    39,921.86x = 55,091.40 × 22,018.52
  4. Step 4: Simplify right side
    39,921.86x = 1,213,031,092.73
  5. Step 5: Solve for x
    x = 1,213,031,092.73/39,921.86
  6. Step 6: Final answer
    x = 30,385.13

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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.