Home / 21,572.20-32,362.10-8,921.92

Finding the Fourth Proportional to 21,572.20, 32,362.10 and 8,921.92

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Solution

The fourth proportional to 21,572.20, 32,362.10 and 8,921.92 is: 13,384.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,572.20 : 32,362.10 = 8,921.92 : x
  2. Step 2: Convert to fraction form
    21,572.20/32,362.10 = 8,921.92/x
  3. Step 3: Cross multiply
    21,572.20x = 32,362.10 × 8,921.92
  4. Step 4: Simplify right side
    21,572.20x = 288,732,067.23
  5. Step 5: Solve for x
    x = 288,732,067.23/21,572.20
  6. Step 6: Final answer
    x = 13,384.45

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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.