Home / 21,377.70-32,066.28-7,147.24

Finding the Fourth Proportional to 21,377.70, 32,066.28 and 7,147.24

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Solution

The fourth proportional to 21,377.70, 32,066.28 and 7,147.24 is: 10,720.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.70 : 32,066.28 = 7,147.24 : x
  2. Step 2: Convert to fraction form
    21,377.70/32,066.28 = 7,147.24/x
  3. Step 3: Cross multiply
    21,377.70x = 32,066.28 × 7,147.24
  4. Step 4: Simplify right side
    21,377.70x = 229,185,318.90
  5. Step 5: Solve for x
    x = 229,185,318.90/21,377.70
  6. Step 6: Final answer
    x = 10,720.77

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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.