Home / 13,799.87-20,687.35-13,381.55

Finding the Fourth Proportional to 13,799.87, 20,687.35 and 13,381.55

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Solution

The fourth proportional to 13,799.87, 20,687.35 and 13,381.55 is: 20,060.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.87 : 20,687.35 = 13,381.55 : x
  2. Step 2: Convert to fraction form
    13,799.87/20,687.35 = 13,381.55/x
  3. Step 3: Cross multiply
    13,799.87x = 20,687.35 × 13,381.55
  4. Step 4: Simplify right side
    13,799.87x = 276,828,808.39
  5. Step 5: Solve for x
    x = 276,828,808.39/13,799.87
  6. Step 6: Final answer
    x = 20,060.25

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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.