Home / 15,131.34-22,635.96-13,555.79

Finding the Fourth Proportional to 15,131.34, 22,635.96 and 13,555.79

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Solution

The fourth proportional to 15,131.34, 22,635.96 and 13,555.79 is: 20,278.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,131.34 : 22,635.96 = 13,555.79 : x
  2. Step 2: Convert to fraction form
    15,131.34/22,635.96 = 13,555.79/x
  3. Step 3: Cross multiply
    15,131.34x = 22,635.96 × 13,555.79
  4. Step 4: Simplify right side
    15,131.34x = 306,848,241.08
  5. Step 5: Solve for x
    x = 306,848,241.08/15,131.34
  6. Step 6: Final answer
    x = 20,278.99

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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.