Home / 39,865.91-55,010.31-22,865.45

Finding the Fourth Proportional to 39,865.91, 55,010.31 and 22,865.45

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Solution

The fourth proportional to 39,865.91, 55,010.31 and 22,865.45 is: 31,551.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,865.91 : 55,010.31 = 22,865.45 : x
  2. Step 2: Convert to fraction form
    39,865.91/55,010.31 = 22,865.45/x
  3. Step 3: Cross multiply
    39,865.91x = 55,010.31 × 22,865.45
  4. Step 4: Simplify right side
    39,865.91x = 1,257,835,217.74
  5. Step 5: Solve for x
    x = 1,257,835,217.74/39,865.91
  6. Step 6: Final answer
    x = 31,551.65

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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.