Home / 26,686.35-36,825.10-15,356.48

Finding the Fourth Proportional to 26,686.35, 36,825.10 and 15,356.48

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Solution

The fourth proportional to 26,686.35, 36,825.10 and 15,356.48 is: 21,190.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,686.35 : 36,825.10 = 15,356.48 : x
  2. Step 2: Convert to fraction form
    26,686.35/36,825.10 = 15,356.48/x
  3. Step 3: Cross multiply
    26,686.35x = 36,825.10 × 15,356.48
  4. Step 4: Simplify right side
    26,686.35x = 565,503,689.13
  5. Step 5: Solve for x
    x = 565,503,689.13/26,686.35
  6. Step 6: Final answer
    x = 21,190.75

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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.