Home / 27,228.60-40,881.30-21,391.80

Finding the Fourth Proportional to 27,228.60, 40,881.30 and 21,391.80

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Solution

The fourth proportional to 27,228.60, 40,881.30 and 21,391.80 is: 32,117.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,228.60 : 40,881.30 = 21,391.80 : x
  2. Step 2: Convert to fraction form
    27,228.60/40,881.30 = 21,391.80/x
  3. Step 3: Cross multiply
    27,228.60x = 40,881.30 × 21,391.80
  4. Step 4: Simplify right side
    27,228.60x = 874,524,593.34
  5. Step 5: Solve for x
    x = 874,524,593.34/27,228.60
  6. Step 6: Final answer
    x = 32,117.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.