Home / 21,995.68-33,001.08-6,415.60

Finding the Fourth Proportional to 21,995.68, 33,001.08 and 6,415.60

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Solution

The fourth proportional to 21,995.68, 33,001.08 and 6,415.60 is: 9,625.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.68 : 33,001.08 = 6,415.60 : x
  2. Step 2: Convert to fraction form
    21,995.68/33,001.08 = 6,415.60/x
  3. Step 3: Cross multiply
    21,995.68x = 33,001.08 × 6,415.60
  4. Step 4: Simplify right side
    21,995.68x = 211,721,728.85
  5. Step 5: Solve for x
    x = 211,721,728.85/21,995.68
  6. Step 6: Final answer
    x = 9,625.61

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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.