Home / 39,072.40-53,919.84-21,167.85

Finding the Fourth Proportional to 39,072.40, 53,919.84 and 21,167.85

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Solution

The fourth proportional to 39,072.40, 53,919.84 and 21,167.85 is: 29,211.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,072.40 : 53,919.84 = 21,167.85 : x
  2. Step 2: Convert to fraction form
    39,072.40/53,919.84 = 21,167.85/x
  3. Step 3: Cross multiply
    39,072.40x = 53,919.84 × 21,167.85
  4. Step 4: Simplify right side
    39,072.40x = 1,141,367,085.14
  5. Step 5: Solve for x
    x = 1,141,367,085.14/39,072.40
  6. Step 6: Final answer
    x = 29,211.59

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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.