Home / 39,644.54-54,711.91-21,742.12

Finding the Fourth Proportional to 39,644.54, 54,711.91 and 21,742.12

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Solution

The fourth proportional to 39,644.54, 54,711.91 and 21,742.12 is: 30,005.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,644.54 : 54,711.91 = 21,742.12 : x
  2. Step 2: Convert to fraction form
    39,644.54/54,711.91 = 21,742.12/x
  3. Step 3: Cross multiply
    39,644.54x = 54,711.91 × 21,742.12
  4. Step 4: Simplify right side
    39,644.54x = 1,189,552,885.92
  5. Step 5: Solve for x
    x = 1,189,552,885.92/39,644.54
  6. Step 6: Final answer
    x = 30,005.47

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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.