Home / 36,307.21-50,103.66-20,391.31

Finding the Fourth Proportional to 36,307.21, 50,103.66 and 20,391.31

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Solution

The fourth proportional to 36,307.21, 50,103.66 and 20,391.31 is: 28,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,307.21 : 50,103.66 = 20,391.31 : x
  2. Step 2: Convert to fraction form
    36,307.21/50,103.66 = 20,391.31/x
  3. Step 3: Cross multiply
    36,307.21x = 50,103.66 × 20,391.31
  4. Step 4: Simplify right side
    36,307.21x = 1,021,679,263.19
  5. Step 5: Solve for x
    x = 1,021,679,263.19/36,307.21
  6. Step 6: Final answer
    x = 28,139.85

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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.