Home / 27,065.70-37,349.64-15,128.46

Finding the Fourth Proportional to 27,065.70, 37,349.64 and 15,128.46

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Solution

The fourth proportional to 27,065.70, 37,349.64 and 15,128.46 is: 20,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,065.70 : 37,349.64 = 15,128.46 : x
  2. Step 2: Convert to fraction form
    27,065.70/37,349.64 = 15,128.46/x
  3. Step 3: Cross multiply
    27,065.70x = 37,349.64 × 15,128.46
  4. Step 4: Simplify right side
    27,065.70x = 565,042,534.75
  5. Step 5: Solve for x
    x = 565,042,534.75/27,065.70
  6. Step 6: Final answer
    x = 20,876.70

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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.