Home / 39,772.38-54,885.40-21,867.23

Finding the Fourth Proportional to 39,772.38, 54,885.40 and 21,867.23

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Solution

The fourth proportional to 39,772.38, 54,885.40 and 21,867.23 is: 30,176.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,772.38 : 54,885.40 = 21,867.23 : x
  2. Step 2: Convert to fraction form
    39,772.38/54,885.40 = 21,867.23/x
  3. Step 3: Cross multiply
    39,772.38x = 54,885.40 × 21,867.23
  4. Step 4: Simplify right side
    39,772.38x = 1,200,191,747.99
  5. Step 5: Solve for x
    x = 1,200,191,747.99/39,772.38
  6. Step 6: Final answer
    x = 30,176.51

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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.