Home / 19,728.86-29,593.56-11,019.20

Finding the Fourth Proportional to 19,728.86, 29,593.56 and 11,019.20

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Solution

The fourth proportional to 19,728.86, 29,593.56 and 11,019.20 is: 16,528.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.86 : 29,593.56 = 11,019.20 : x
  2. Step 2: Convert to fraction form
    19,728.86/29,593.56 = 11,019.20/x
  3. Step 3: Cross multiply
    19,728.86x = 29,593.56 × 11,019.20
  4. Step 4: Simplify right side
    19,728.86x = 326,097,356.35
  5. Step 5: Solve for x
    x = 326,097,356.35/19,728.86
  6. Step 6: Final answer
    x = 16,528.95

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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.