Home / 39,237.42-54,147.09-21,331.98

Finding the Fourth Proportional to 39,237.42, 54,147.09 and 21,331.98

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Solution

The fourth proportional to 39,237.42, 54,147.09 and 21,331.98 is: 29,437.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,237.42 : 54,147.09 = 21,331.98 : x
  2. Step 2: Convert to fraction form
    39,237.42/54,147.09 = 21,331.98/x
  3. Step 3: Cross multiply
    39,237.42x = 54,147.09 × 21,331.98
  4. Step 4: Simplify right side
    39,237.42x = 1,155,064,640.94
  5. Step 5: Solve for x
    x = 1,155,064,640.94/39,237.42
  6. Step 6: Final answer
    x = 29,437.83

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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.