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Finding the Fourth Proportional to 35,998.52, 49,678.20 and 21,658.68

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Solution

The fourth proportional to 35,998.52, 49,678.20 and 21,658.68 is: 29,889.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,998.52 : 49,678.20 = 21,658.68 : x
  2. Step 2: Convert to fraction form
    35,998.52/49,678.20 = 21,658.68/x
  3. Step 3: Cross multiply
    35,998.52x = 49,678.20 × 21,658.68
  4. Step 4: Simplify right side
    35,998.52x = 1,075,964,236.78
  5. Step 5: Solve for x
    x = 1,075,964,236.78/35,998.52
  6. Step 6: Final answer
    x = 29,889.13

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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.