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Finding the Fourth Proportional to 26,076.79, 35,979.13 and 15,468.79

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Solution

The fourth proportional to 26,076.79, 35,979.13 and 15,468.79 is: 21,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,076.79 : 35,979.13 = 15,468.79 : x
  2. Step 2: Convert to fraction form
    26,076.79/35,979.13 = 15,468.79/x
  3. Step 3: Cross multiply
    26,076.79x = 35,979.13 × 15,468.79
  4. Step 4: Simplify right side
    26,076.79x = 556,553,606.35
  5. Step 5: Solve for x
    x = 556,553,606.35/26,076.79
  6. Step 6: Final answer
    x = 21,342.87

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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.