Home / 39,945.18-55,124.65-22,040.85

Finding the Fourth Proportional to 39,945.18, 55,124.65 and 22,040.85

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Solution

The fourth proportional to 39,945.18, 55,124.65 and 22,040.85 is: 30,416.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,945.18 : 55,124.65 = 22,040.85 : x
  2. Step 2: Convert to fraction form
    39,945.18/55,124.65 = 22,040.85/x
  3. Step 3: Cross multiply
    39,945.18x = 55,124.65 × 22,040.85
  4. Step 4: Simplify right side
    39,945.18x = 1,214,994,141.95
  5. Step 5: Solve for x
    x = 1,214,994,141.95/39,945.18
  6. Step 6: Final answer
    x = 30,416.54

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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.