Home / 21,422.37-32,134.92-6,630.05

Finding the Fourth Proportional to 21,422.37, 32,134.92 and 6,630.05

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Solution

The fourth proportional to 21,422.37, 32,134.92 and 6,630.05 is: 9,945.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,422.37 : 32,134.92 = 6,630.05 : x
  2. Step 2: Convert to fraction form
    21,422.37/32,134.92 = 6,630.05/x
  3. Step 3: Cross multiply
    21,422.37x = 32,134.92 × 6,630.05
  4. Step 4: Simplify right side
    21,422.37x = 213,056,126.35
  5. Step 5: Solve for x
    x = 213,056,126.35/21,422.37
  6. Step 6: Final answer
    x = 9,945.50

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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.