Home / 19,681.20-27,158.52-11,296.08

Finding the Fourth Proportional to 19,681.20, 27,158.52 and 11,296.08

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Solution

The fourth proportional to 19,681.20, 27,158.52 and 11,296.08 is: 15,587.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.20 : 27,158.52 = 11,296.08 : x
  2. Step 2: Convert to fraction form
    19,681.20/27,158.52 = 11,296.08/x
  3. Step 3: Cross multiply
    19,681.20x = 27,158.52 × 11,296.08
  4. Step 4: Simplify right side
    19,681.20x = 306,784,814.60
  5. Step 5: Solve for x
    x = 306,784,814.60/19,681.20
  6. Step 6: Final answer
    x = 15,587.71

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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.