Home / 20,750.88-28,635.60-11,799.36

Finding the Fourth Proportional to 20,750.88, 28,635.60 and 11,799.36

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Solution

The fourth proportional to 20,750.88, 28,635.60 and 11,799.36 is: 16,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.88 : 28,635.60 = 11,799.36 : x
  2. Step 2: Convert to fraction form
    20,750.88/28,635.60 = 11,799.36/x
  3. Step 3: Cross multiply
    20,750.88x = 28,635.60 × 11,799.36
  4. Step 4: Simplify right side
    20,750.88x = 337,881,753.22
  5. Step 5: Solve for x
    x = 337,881,753.22/20,750.88
  6. Step 6: Final answer
    x = 16,282.77

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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.