Home / 39,474.69-54,475.79-21,570.45

Finding the Fourth Proportional to 39,474.69, 54,475.79 and 21,570.45

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Solution

The fourth proportional to 39,474.69, 54,475.79 and 21,570.45 is: 29,767.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,474.69 : 54,475.79 = 21,570.45 : x
  2. Step 2: Convert to fraction form
    39,474.69/54,475.79 = 21,570.45/x
  3. Step 3: Cross multiply
    39,474.69x = 54,475.79 × 21,570.45
  4. Step 4: Simplify right side
    39,474.69x = 1,175,067,196.55
  5. Step 5: Solve for x
    x = 1,175,067,196.55/39,474.69
  6. Step 6: Final answer
    x = 29,767.61

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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.