Home / 39,404.94-54,377.80-21,500.07

Finding the Fourth Proportional to 39,404.94, 54,377.80 and 21,500.07

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Solution

The fourth proportional to 39,404.94, 54,377.80 and 21,500.07 is: 29,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,404.94 : 54,377.80 = 21,500.07 : x
  2. Step 2: Convert to fraction form
    39,404.94/54,377.80 = 21,500.07/x
  3. Step 3: Cross multiply
    39,404.94x = 54,377.80 × 21,500.07
  4. Step 4: Simplify right side
    39,404.94x = 1,169,126,506.45
  5. Step 5: Solve for x
    x = 1,169,126,506.45/39,404.94
  6. Step 6: Final answer
    x = 29,669.54

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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.