Home / 20,404.02-30,542.43-15,711.84

Finding the Fourth Proportional to 20,404.02, 30,542.43 and 15,711.84

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Solution

The fourth proportional to 20,404.02, 30,542.43 and 15,711.84 is: 23,518.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.02 : 30,542.43 = 15,711.84 : x
  2. Step 2: Convert to fraction form
    20,404.02/30,542.43 = 15,711.84/x
  3. Step 3: Cross multiply
    20,404.02x = 30,542.43 × 15,711.84
  4. Step 4: Simplify right side
    20,404.02x = 479,877,773.37
  5. Step 5: Solve for x
    x = 479,877,773.37/20,404.02
  6. Step 6: Final answer
    x = 23,518.79

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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.