Home / 39,945.48-59,923.89-21,220.62

Finding the Fourth Proportional to 39,945.48, 59,923.89 and 21,220.62

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Solution

The fourth proportional to 39,945.48, 59,923.89 and 21,220.62 is: 31,833.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,945.48 : 59,923.89 = 21,220.62 : x
  2. Step 2: Convert to fraction form
    39,945.48/59,923.89 = 21,220.62/x
  3. Step 3: Cross multiply
    39,945.48x = 59,923.89 × 21,220.62
  4. Step 4: Simplify right side
    39,945.48x = 1,271,622,098.61
  5. Step 5: Solve for x
    x = 1,271,622,098.61/39,945.48
  6. Step 6: Final answer
    x = 31,833.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.