Home / 20,000.12-27,599.33-11,501.60

Finding the Fourth Proportional to 20,000.12, 27,599.33 and 11,501.60

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Solution

The fourth proportional to 20,000.12, 27,599.33 and 11,501.60 is: 15,871.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.12 : 27,599.33 = 11,501.60 : x
  2. Step 2: Convert to fraction form
    20,000.12/27,599.33 = 11,501.60/x
  3. Step 3: Cross multiply
    20,000.12x = 27,599.33 × 11,501.60
  4. Step 4: Simplify right side
    20,000.12x = 317,436,344.69
  5. Step 5: Solve for x
    x = 317,436,344.69/20,000.12
  6. Step 6: Final answer
    x = 15,871.73

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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.