Home / 20,522.87-28,323.02-11,571.20

Finding the Fourth Proportional to 20,522.87, 28,323.02 and 11,571.20

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Solution

The fourth proportional to 20,522.87, 28,323.02 and 11,571.20 is: 15,969.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.87 : 28,323.02 = 11,571.20 : x
  2. Step 2: Convert to fraction form
    20,522.87/28,323.02 = 11,571.20/x
  3. Step 3: Cross multiply
    20,522.87x = 28,323.02 × 11,571.20
  4. Step 4: Simplify right side
    20,522.87x = 327,731,416.78
  5. Step 5: Solve for x
    x = 327,731,416.78/20,522.87
  6. Step 6: Final answer
    x = 15,969.08

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1.5x scale

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.