Home / 36,431.40-50,273.58-20,515.56

Finding the Fourth Proportional to 36,431.40, 50,273.58 and 20,515.56

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Solution

The fourth proportional to 36,431.40, 50,273.58 and 20,515.56 is: 28,310.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,431.40 : 50,273.58 = 20,515.56 : x
  2. Step 2: Convert to fraction form
    36,431.40/50,273.58 = 20,515.56/x
  3. Step 3: Cross multiply
    36,431.40x = 50,273.58 × 20,515.56
  4. Step 4: Simplify right side
    36,431.40x = 1,031,390,646.90
  5. Step 5: Solve for x
    x = 1,031,390,646.90/36,431.40
  6. Step 6: Final answer
    x = 28,310.49

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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.