Home / 26,728.20-36,888.82-15,395.49

Finding the Fourth Proportional to 26,728.20, 36,888.82 and 15,395.49

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Solution

The fourth proportional to 26,728.20, 36,888.82 and 15,395.49 is: 21,248.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,728.20 : 36,888.82 = 15,395.49 : x
  2. Step 2: Convert to fraction form
    26,728.20/36,888.82 = 15,395.49/x
  3. Step 3: Cross multiply
    26,728.20x = 36,888.82 × 15,395.49
  4. Step 4: Simplify right side
    26,728.20x = 567,921,420.93
  5. Step 5: Solve for x
    x = 567,921,420.93/26,728.20
  6. Step 6: Final answer
    x = 21,248.02

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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.