Home / 15,571.20-23,356.80-13,627.20

Finding the Fourth Proportional to 15,571.20, 23,356.80 and 13,627.20

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Solution

The fourth proportional to 15,571.20, 23,356.80 and 13,627.20 is: 20,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,571.20 : 23,356.80 = 13,627.20 : x
  2. Step 2: Convert to fraction form
    15,571.20/23,356.80 = 13,627.20/x
  3. Step 3: Cross multiply
    15,571.20x = 23,356.80 × 13,627.20
  4. Step 4: Simplify right side
    15,571.20x = 318,287,784.96
  5. Step 5: Solve for x
    x = 318,287,784.96/15,571.20
  6. Step 6: Final answer
    x = 20,440.80

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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.