Home / 18,220.60-27,311.40-13,010.68

Finding the Fourth Proportional to 18,220.60, 27,311.40 and 13,010.68

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Solution

The fourth proportional to 18,220.60, 27,311.40 and 13,010.68 is: 19,502.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.60 : 27,311.40 = 13,010.68 : x
  2. Step 2: Convert to fraction form
    18,220.60/27,311.40 = 13,010.68/x
  3. Step 3: Cross multiply
    18,220.60x = 27,311.40 × 13,010.68
  4. Step 4: Simplify right side
    18,220.60x = 355,339,885.75
  5. Step 5: Solve for x
    x = 355,339,885.75/18,220.60
  6. Step 6: Final answer
    x = 19,502.10

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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.