Home / 16,450.60-22,681.25-13,729.05

Finding the Fourth Proportional to 16,450.60, 22,681.25 and 13,729.05

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Solution

The fourth proportional to 16,450.60, 22,681.25 and 13,729.05 is: 18,928.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,450.60 : 22,681.25 = 13,729.05 : x
  2. Step 2: Convert to fraction form
    16,450.60/22,681.25 = 13,729.05/x
  3. Step 3: Cross multiply
    16,450.60x = 22,681.25 × 13,729.05
  4. Step 4: Simplify right side
    16,450.60x = 311,392,015.31
  5. Step 5: Solve for x
    x = 311,392,015.31/16,450.60
  6. Step 6: Final answer
    x = 18,928.92

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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.