Home / 20,497.53-30,760.88-15,822.21

Finding the Fourth Proportional to 20,497.53, 30,760.88 and 15,822.21

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Solution

The fourth proportional to 20,497.53, 30,760.88 and 15,822.21 is: 23,744.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,497.53 : 30,760.88 = 15,822.21 : x
  2. Step 2: Convert to fraction form
    20,497.53/30,760.88 = 15,822.21/x
  3. Step 3: Cross multiply
    20,497.53x = 30,760.88 × 15,822.21
  4. Step 4: Simplify right side
    20,497.53x = 486,705,024.03
  5. Step 5: Solve for x
    x = 486,705,024.03/20,497.53
  6. Step 6: Final answer
    x = 23,744.57

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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.