Home / 20,553.32-28,362.20-11,601.20

Finding the Fourth Proportional to 20,553.32, 28,362.20 and 11,601.20

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Solution

The fourth proportional to 20,553.32, 28,362.20 and 11,601.20 is: 16,008.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.32 : 28,362.20 = 11,601.20 : x
  2. Step 2: Convert to fraction form
    20,553.32/28,362.20 = 11,601.20/x
  3. Step 3: Cross multiply
    20,553.32x = 28,362.20 × 11,601.20
  4. Step 4: Simplify right side
    20,553.32x = 329,035,554.64
  5. Step 5: Solve for x
    x = 329,035,554.64/20,553.32
  6. Step 6: Final answer
    x = 16,008.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.