Home / 20,357.27-30,552.30-10,499.37

Finding the Fourth Proportional to 20,357.27, 30,552.30 and 10,499.37

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Solution

The fourth proportional to 20,357.27, 30,552.30 and 10,499.37 is: 15,757.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357.27 : 30,552.30 = 10,499.37 : x
  2. Step 2: Convert to fraction form
    20,357.27/30,552.30 = 10,499.37/x
  3. Step 3: Cross multiply
    20,357.27x = 30,552.30 × 10,499.37
  4. Step 4: Simplify right side
    20,357.27x = 320,779,902.05
  5. Step 5: Solve for x
    x = 320,779,902.05/20,357.27
  6. Step 6: Final answer
    x = 15,757.51

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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.