Home / 26,381.52-36,399.24-15,767.28

Finding the Fourth Proportional to 26,381.52, 36,399.24 and 15,767.28

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Solution

The fourth proportional to 26,381.52, 36,399.24 and 15,767.28 is: 21,754.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,381.52 : 36,399.24 = 15,767.28 : x
  2. Step 2: Convert to fraction form
    26,381.52/36,399.24 = 15,767.28/x
  3. Step 3: Cross multiply
    26,381.52x = 36,399.24 × 15,767.28
  4. Step 4: Simplify right side
    26,381.52x = 573,917,008.87
  5. Step 5: Solve for x
    x = 573,917,008.87/26,381.52
  6. Step 6: Final answer
    x = 21,754.51

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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.