Home / 39,801.30-54,924.66-21,651.45

Finding the Fourth Proportional to 39,801.30, 54,924.66 and 21,651.45

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Solution

The fourth proportional to 39,801.30, 54,924.66 and 21,651.45 is: 29,878.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,801.30 : 54,924.66 = 21,651.45 : x
  2. Step 2: Convert to fraction form
    39,801.30/54,924.66 = 21,651.45/x
  3. Step 3: Cross multiply
    39,801.30x = 54,924.66 × 21,651.45
  4. Step 4: Simplify right side
    39,801.30x = 1,189,198,529.76
  5. Step 5: Solve for x
    x = 1,189,198,529.76/39,801.30
  6. Step 6: Final answer
    x = 29,878.38

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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.