Home / 39,855.02-54,999.26-21,951.69

Finding the Fourth Proportional to 39,855.02, 54,999.26 and 21,951.69

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Solution

The fourth proportional to 39,855.02, 54,999.26 and 21,951.69 is: 30,292.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,855.02 : 54,999.26 = 21,951.69 : x
  2. Step 2: Convert to fraction form
    39,855.02/54,999.26 = 21,951.69/x
  3. Step 3: Cross multiply
    39,855.02x = 54,999.26 × 21,951.69
  4. Step 4: Simplify right side
    39,855.02x = 1,207,326,595.99
  5. Step 5: Solve for x
    x = 1,207,326,595.99/39,855.02
  6. Step 6: Final answer
    x = 30,292.97

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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.