Home / 20,404.30-30,606.58-5,614.78

Finding the Fourth Proportional to 20,404.30, 30,606.58 and 5,614.78

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Solution

The fourth proportional to 20,404.30, 30,606.58 and 5,614.78 is: 8,422.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.30 : 30,606.58 = 5,614.78 : x
  2. Step 2: Convert to fraction form
    20,404.30/30,606.58 = 5,614.78/x
  3. Step 3: Cross multiply
    20,404.30x = 30,606.58 × 5,614.78
  4. Step 4: Simplify right side
    20,404.30x = 171,849,213.25
  5. Step 5: Solve for x
    x = 171,849,213.25/20,404.30
  6. Step 6: Final answer
    x = 8,422.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.