Home / 19,832.13-29,728.76-8,151.93

Finding the Fourth Proportional to 19,832.13, 29,728.76 and 8,151.93

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Solution

The fourth proportional to 19,832.13, 29,728.76 and 8,151.93 is: 12,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,832.13 : 29,728.76 = 8,151.93 : x
  2. Step 2: Convert to fraction form
    19,832.13/29,728.76 = 8,151.93/x
  3. Step 3: Cross multiply
    19,832.13x = 29,728.76 × 8,151.93
  4. Step 4: Simplify right side
    19,832.13x = 242,346,729.75
  5. Step 5: Solve for x
    x = 242,346,729.75/19,832.13
  6. Step 6: Final answer
    x = 12,219.90

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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.