Home / 26,686.85-36,825.79-15,356.98

Finding the Fourth Proportional to 26,686.85, 36,825.79 and 15,356.98

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Solution

The fourth proportional to 26,686.85, 36,825.79 and 15,356.98 is: 21,191.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,686.85 : 36,825.79 = 15,356.98 : x
  2. Step 2: Convert to fraction form
    26,686.85/36,825.79 = 15,356.98/x
  3. Step 3: Cross multiply
    26,686.85x = 36,825.79 × 15,356.98
  4. Step 4: Simplify right side
    26,686.85x = 565,532,659.60
  5. Step 5: Solve for x
    x = 565,532,659.60/26,686.85
  6. Step 6: Final answer
    x = 21,191.44

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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.