Home / 15,305.40-22,958.10-13,458.60

Finding the Fourth Proportional to 15,305.40, 22,958.10 and 13,458.60

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Solution

The fourth proportional to 15,305.40, 22,958.10 and 13,458.60 is: 20,187.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305.40 : 22,958.10 = 13,458.60 : x
  2. Step 2: Convert to fraction form
    15,305.40/22,958.10 = 13,458.60/x
  3. Step 3: Cross multiply
    15,305.40x = 22,958.10 × 13,458.60
  4. Step 4: Simplify right side
    15,305.40x = 308,983,884.66
  5. Step 5: Solve for x
    x = 308,983,884.66/15,305.40
  6. Step 6: Final answer
    x = 20,187.90

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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.