Home / 36,435.28-50,280.84-20,520

Finding the Fourth Proportional to 36,435.28, 50,280.84 and 20,520

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Solution

The fourth proportional to 36,435.28, 50,280.84 and 20,520 is: 28,317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,435.28 : 50,280.84 = 20,520 : x
  2. Step 2: Convert to fraction form
    36,435.28/50,280.84 = 20,520/x
  3. Step 3: Cross multiply
    36,435.28x = 50,280.84 × 20,520
  4. Step 4: Simplify right side
    36,435.28x = 1,031,762,836.80
  5. Step 5: Solve for x
    x = 1,031,762,836.80/36,435.28
  6. Step 6: Final answer
    x = 28,317.69

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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.