Home / 36,030.21-49,719.60-20,115.66

Finding the Fourth Proportional to 36,030.21, 49,719.60 and 20,115.66

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Solution

The fourth proportional to 36,030.21, 49,719.60 and 20,115.66 is: 27,758.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,030.21 : 49,719.60 = 20,115.66 : x
  2. Step 2: Convert to fraction form
    36,030.21/49,719.60 = 20,115.66/x
  3. Step 3: Cross multiply
    36,030.21x = 49,719.60 × 20,115.66
  4. Step 4: Simplify right side
    36,030.21x = 1,000,142,568.94
  5. Step 5: Solve for x
    x = 1,000,142,568.94/36,030.21
  6. Step 6: Final answer
    x = 27,758.44

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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.