Home / 36,434.35-50,278.39-20,518.45

Finding the Fourth Proportional to 36,434.35, 50,278.39 and 20,518.45

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Solution

The fourth proportional to 36,434.35, 50,278.39 and 20,518.45 is: 28,314.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,434.35 : 50,278.39 = 20,518.45 : x
  2. Step 2: Convert to fraction form
    36,434.35/50,278.39 = 20,518.45/x
  3. Step 3: Cross multiply
    36,434.35x = 50,278.39 × 20,518.45
  4. Step 4: Simplify right side
    36,434.35x = 1,031,634,631.30
  5. Step 5: Solve for x
    x = 1,031,634,631.30/36,434.35
  6. Step 6: Final answer
    x = 28,314.89

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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.