Home / 21,705.23-32,560.28-6,910.72

Finding the Fourth Proportional to 21,705.23, 32,560.28 and 6,910.72

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Solution

The fourth proportional to 21,705.23, 32,560.28 and 6,910.72 is: 10,366.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,705.23 : 32,560.28 = 6,910.72 : x
  2. Step 2: Convert to fraction form
    21,705.23/32,560.28 = 6,910.72/x
  3. Step 3: Cross multiply
    21,705.23x = 32,560.28 × 6,910.72
  4. Step 4: Simplify right side
    21,705.23x = 225,014,978.20
  5. Step 5: Solve for x
    x = 225,014,978.20/21,705.23
  6. Step 6: Final answer
    x = 10,366.86

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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.