Home / 36,919.20-50,943.36-21,002.88

Finding the Fourth Proportional to 36,919.20, 50,943.36 and 21,002.88

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Solution

The fourth proportional to 36,919.20, 50,943.36 and 21,002.88 is: 28,981.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,919.20 : 50,943.36 = 21,002.88 : x
  2. Step 2: Convert to fraction form
    36,919.20/50,943.36 = 21,002.88/x
  3. Step 3: Cross multiply
    36,919.20x = 50,943.36 × 21,002.88
  4. Step 4: Simplify right side
    36,919.20x = 1,069,957,276.88
  5. Step 5: Solve for x
    x = 1,069,957,276.88/36,919.20
  6. Step 6: Final answer
    x = 28,981.05

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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.