Home / 36,639-50,561.82-20,723.11

Finding the Fourth Proportional to 36,639, 50,561.82 and 20,723.11

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Solution

The fourth proportional to 36,639, 50,561.82 and 20,723.11 is: 28,597.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,639 : 50,561.82 = 20,723.11 : x
  2. Step 2: Convert to fraction form
    36,639/50,561.82 = 20,723.11/x
  3. Step 3: Cross multiply
    36,639x = 50,561.82 × 20,723.11
  4. Step 4: Simplify right side
    36,639x = 1,047,798,031.26
  5. Step 5: Solve for x
    x = 1,047,798,031.26/36,639
  6. Step 6: Final answer
    x = 28,597.89

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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.