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Finding the Fourth Proportional to 27,509.76, 37,963.78 and 15,572.84

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Solution

The fourth proportional to 27,509.76, 37,963.78 and 15,572.84 is: 21,490.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,509.76 : 37,963.78 = 15,572.84 : x
  2. Step 2: Convert to fraction form
    27,509.76/37,963.78 = 15,572.84/x
  3. Step 3: Cross multiply
    27,509.76x = 37,963.78 × 15,572.84
  4. Step 4: Simplify right side
    27,509.76x = 591,203,670.97
  5. Step 5: Solve for x
    x = 591,203,670.97/27,509.76
  6. Step 6: Final answer
    x = 21,490.69

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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.