Home / 27,613.14-38,106.30-15,513.71

Finding the Fourth Proportional to 27,613.14, 38,106.30 and 15,513.71

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Solution

The fourth proportional to 27,613.14, 38,106.30 and 15,513.71 is: 21,409.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,613.14 : 38,106.30 = 15,513.71 : x
  2. Step 2: Convert to fraction form
    27,613.14/38,106.30 = 15,513.71/x
  3. Step 3: Cross multiply
    27,613.14x = 38,106.30 × 15,513.71
  4. Step 4: Simplify right side
    27,613.14x = 591,169,896.84
  5. Step 5: Solve for x
    x = 591,169,896.84/27,613.14
  6. Step 6: Final answer
    x = 21,409.01

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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.