Home / 27,440.10-37,865.07-15,505.56

Finding the Fourth Proportional to 27,440.10, 37,865.07 and 15,505.56

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Solution

The fourth proportional to 27,440.10, 37,865.07 and 15,505.56 is: 21,396.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,440.10 : 37,865.07 = 15,505.56 : x
  2. Step 2: Convert to fraction form
    27,440.10/37,865.07 = 15,505.56/x
  3. Step 3: Cross multiply
    27,440.10x = 37,865.07 × 15,505.56
  4. Step 4: Simplify right side
    27,440.10x = 587,119,114.79
  5. Step 5: Solve for x
    x = 587,119,114.79/27,440.10
  6. Step 6: Final answer
    x = 21,396.39

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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.