Home / 39,752.18-54,859.05-21,847.66

Finding the Fourth Proportional to 39,752.18, 54,859.05 and 21,847.66

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Solution

The fourth proportional to 39,752.18, 54,859.05 and 21,847.66 is: 30,150.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,752.18 : 54,859.05 = 21,847.66 : x
  2. Step 2: Convert to fraction form
    39,752.18/54,859.05 = 21,847.66/x
  3. Step 3: Cross multiply
    39,752.18x = 54,859.05 × 21,847.66
  4. Step 4: Simplify right side
    39,752.18x = 1,198,541,872.32
  5. Step 5: Solve for x
    x = 1,198,541,872.32/39,752.18
  6. Step 6: Final answer
    x = 30,150.34

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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.