Home / 22,355.12-30,851.16-12,795.92

Finding the Fourth Proportional to 22,355.12, 30,851.16 and 12,795.92

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Solution

The fourth proportional to 22,355.12, 30,851.16 and 12,795.92 is: 17,659.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,355.12 : 30,851.16 = 12,795.92 : x
  2. Step 2: Convert to fraction form
    22,355.12/30,851.16 = 12,795.92/x
  3. Step 3: Cross multiply
    22,355.12x = 30,851.16 × 12,795.92
  4. Step 4: Simplify right side
    22,355.12x = 394,768,975.27
  5. Step 5: Solve for x
    x = 394,768,975.27/22,355.12
  6. Step 6: Final answer
    x = 17,659.00

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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.