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Finding the Fourth Proportional to 27,400.67, 37,809.13 and 15,299.67

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Solution

The fourth proportional to 27,400.67, 37,809.13 and 15,299.67 is: 21,111.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,400.67 : 37,809.13 = 15,299.67 : x
  2. Step 2: Convert to fraction form
    27,400.67/37,809.13 = 15,299.67/x
  3. Step 3: Cross multiply
    27,400.67x = 37,809.13 × 15,299.67
  4. Step 4: Simplify right side
    27,400.67x = 578,467,344.21
  5. Step 5: Solve for x
    x = 578,467,344.21/27,400.67
  6. Step 6: Final answer
    x = 21,111.43

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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.