Home / 21,621.72-32,437.27-6,628.89

Finding the Fourth Proportional to 21,621.72, 32,437.27 and 6,628.89

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Solution

The fourth proportional to 21,621.72, 32,437.27 and 6,628.89 is: 9,944.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621.72 : 32,437.27 = 6,628.89 : x
  2. Step 2: Convert to fraction form
    21,621.72/32,437.27 = 6,628.89/x
  3. Step 3: Cross multiply
    21,621.72x = 32,437.27 × 6,628.89
  4. Step 4: Simplify right side
    21,621.72x = 215,023,094.73
  5. Step 5: Solve for x
    x = 215,023,094.73/21,621.72
  6. Step 6: Final answer
    x = 9,944.78

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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.