Home / 36,030.09-49,719.45-20,115.55

Finding the Fourth Proportional to 36,030.09, 49,719.45 and 20,115.55

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Solution

The fourth proportional to 36,030.09, 49,719.45 and 20,115.55 is: 27,758.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,030.09 : 49,719.45 = 20,115.55 : x
  2. Step 2: Convert to fraction form
    36,030.09/49,719.45 = 20,115.55/x
  3. Step 3: Cross multiply
    36,030.09x = 49,719.45 × 20,115.55
  4. Step 4: Simplify right side
    36,030.09x = 1,000,134,082.45
  5. Step 5: Solve for x
    x = 1,000,134,082.45/36,030.09
  6. Step 6: Final answer
    x = 27,758.30

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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.