Home / 39,236.84-54,146.58-21,331.85

Finding the Fourth Proportional to 39,236.84, 54,146.58 and 21,331.85

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Solution

The fourth proportional to 39,236.84, 54,146.58 and 21,331.85 is: 29,437.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,236.84 : 54,146.58 = 21,331.85 : x
  2. Step 2: Convert to fraction form
    39,236.84/54,146.58 = 21,331.85/x
  3. Step 3: Cross multiply
    39,236.84x = 54,146.58 × 21,331.85
  4. Step 4: Simplify right side
    39,236.84x = 1,155,046,675.65
  5. Step 5: Solve for x
    x = 1,155,046,675.65/39,236.84
  6. Step 6: Final answer
    x = 29,437.81

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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.