Home / 39,072.53-53,920.01-21,167.98

Finding the Fourth Proportional to 39,072.53, 53,920.01 and 21,167.98

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Solution

The fourth proportional to 39,072.53, 53,920.01 and 21,167.98 is: 29,211.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,072.53 : 53,920.01 = 21,167.98 : x
  2. Step 2: Convert to fraction form
    39,072.53/53,920.01 = 21,167.98/x
  3. Step 3: Cross multiply
    39,072.53x = 53,920.01 × 21,167.98
  4. Step 4: Simplify right side
    39,072.53x = 1,141,377,611.40
  5. Step 5: Solve for x
    x = 1,141,377,611.40/39,072.53
  6. Step 6: Final answer
    x = 29,211.76

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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.