Home / 27,156.52-37,476.84-15,217.12

Finding the Fourth Proportional to 27,156.52, 37,476.84 and 15,217.12

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Solution

The fourth proportional to 27,156.52, 37,476.84 and 15,217.12 is: 21,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,156.52 : 37,476.84 = 15,217.12 : x
  2. Step 2: Convert to fraction form
    27,156.52/37,476.84 = 15,217.12/x
  3. Step 3: Cross multiply
    27,156.52x = 37,476.84 × 15,217.12
  4. Step 4: Simplify right side
    27,156.52x = 570,289,571.50
  5. Step 5: Solve for x
    x = 570,289,571.50/27,156.52
  6. Step 6: Final answer
    x = 21,000.10

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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.