Home / 21,415.80-32,127.62-6,623.71

Finding the Fourth Proportional to 21,415.80, 32,127.62 and 6,623.71

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Solution

The fourth proportional to 21,415.80, 32,127.62 and 6,623.71 is: 9,936.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,415.80 : 32,127.62 = 6,623.71 : x
  2. Step 2: Convert to fraction form
    21,415.80/32,127.62 = 6,623.71/x
  3. Step 3: Cross multiply
    21,415.80x = 32,127.62 × 6,623.71
  4. Step 4: Simplify right side
    21,415.80x = 212,804,037.87
  5. Step 5: Solve for x
    x = 212,804,037.87/21,415.80
  6. Step 6: Final answer
    x = 9,936.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.