Home / 18,350.70-25,312.50-15,276.72

Finding the Fourth Proportional to 18,350.70, 25,312.50 and 15,276.72

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Solution

The fourth proportional to 18,350.70, 25,312.50 and 15,276.72 is: 21,072.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,350.70 : 25,312.50 = 15,276.72 : x
  2. Step 2: Convert to fraction form
    18,350.70/25,312.50 = 15,276.72/x
  3. Step 3: Cross multiply
    18,350.70x = 25,312.50 × 15,276.72
  4. Step 4: Simplify right side
    18,350.70x = 386,691,975
  5. Step 5: Solve for x
    x = 386,691,975/18,350.70
  6. Step 6: Final answer
    x = 21,072.33

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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.