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Finding the Fourth Proportional to 39,573.97, 59,378.11 and 21,782.89

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Solution

The fourth proportional to 39,573.97, 59,378.11 and 21,782.89 is: 32,683.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,573.97 : 59,378.11 = 21,782.89 : x
  2. Step 2: Convert to fraction form
    39,573.97/59,378.11 = 21,782.89/x
  3. Step 3: Cross multiply
    39,573.97x = 59,378.11 × 21,782.89
  4. Step 4: Simplify right side
    39,573.97x = 1,293,426,838.54
  5. Step 5: Solve for x
    x = 1,293,426,838.54/39,573.97
  6. Step 6: Final answer
    x = 32,683.78

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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.