Home / 35,990.36-49,658.10-21,840.56

Finding the Fourth Proportional to 35,990.36, 49,658.10 and 21,840.56

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Solution

The fourth proportional to 35,990.36, 49,658.10 and 21,840.56 is: 30,134.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,990.36 : 49,658.10 = 21,840.56 : x
  2. Step 2: Convert to fraction form
    35,990.36/49,658.10 = 21,840.56/x
  3. Step 3: Cross multiply
    35,990.36x = 49,658.10 × 21,840.56
  4. Step 4: Simplify right side
    35,990.36x = 1,084,560,712.54
  5. Step 5: Solve for x
    x = 1,084,560,712.54/35,990.36
  6. Step 6: Final answer
    x = 30,134.76

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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.