Home / 35,642.88-49,188.20-19,728.81

Finding the Fourth Proportional to 35,642.88, 49,188.20 and 19,728.81

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Solution

The fourth proportional to 35,642.88, 49,188.20 and 19,728.81 is: 27,226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,642.88 : 49,188.20 = 19,728.81 : x
  2. Step 2: Convert to fraction form
    35,642.88/49,188.20 = 19,728.81/x
  3. Step 3: Cross multiply
    35,642.88x = 49,188.20 × 19,728.81
  4. Step 4: Simplify right side
    35,642.88x = 970,424,553.40
  5. Step 5: Solve for x
    x = 970,424,553.40/35,642.88
  6. Step 6: Final answer
    x = 27,226.32

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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.