Home / 20,266.25-27,968.00-11,313.59

Finding the Fourth Proportional to 20,266.25, 27,968.00 and 11,313.59

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Solution

The fourth proportional to 20,266.25, 27,968.00 and 11,313.59 is: 15,613.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.25 : 27,968.00 = 11,313.59 : x
  2. Step 2: Convert to fraction form
    20,266.25/27,968.00 = 11,313.59/x
  3. Step 3: Cross multiply
    20,266.25x = 27,968.00 × 11,313.59
  4. Step 4: Simplify right side
    20,266.25x = 316,418,288.71
  5. Step 5: Solve for x
    x = 316,418,288.71/20,266.25
  6. Step 6: Final answer
    x = 15,613.07

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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.