Home / 20,553.56-28,362.30-11,603.24

Finding the Fourth Proportional to 20,553.56, 28,362.30 and 11,603.24

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Solution

The fourth proportional to 20,553.56, 28,362.30 and 11,603.24 is: 16,011.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.56 : 28,362.30 = 11,603.24 : x
  2. Step 2: Convert to fraction form
    20,553.56/28,362.30 = 11,603.24/x
  3. Step 3: Cross multiply
    20,553.56x = 28,362.30 × 11,603.24
  4. Step 4: Simplify right side
    20,553.56x = 329,094,573.85
  5. Step 5: Solve for x
    x = 329,094,573.85/20,553.56
  6. Step 6: Final answer
    x = 16,011.56

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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.