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Finding the Fourth Proportional to 20,571.53, 30,858.03 and 10,573.58

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Solution

The fourth proportional to 20,571.53, 30,858.03 and 10,573.58 is: 15,860.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.53 : 30,858.03 = 10,573.58 : x
  2. Step 2: Convert to fraction form
    20,571.53/30,858.03 = 10,573.58/x
  3. Step 3: Cross multiply
    20,571.53x = 30,858.03 × 10,573.58
  4. Step 4: Simplify right side
    20,571.53x = 326,279,925.99
  5. Step 5: Solve for x
    x = 326,279,925.99/20,571.53
  6. Step 6: Final answer
    x = 15,860.76

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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.