Home / 21,680.91-32,525.96-7,640.37

Finding the Fourth Proportional to 21,680.91, 32,525.96 and 7,640.37

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Solution

The fourth proportional to 21,680.91, 32,525.96 and 7,640.37 is: 11,462.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,680.91 : 32,525.96 = 7,640.37 : x
  2. Step 2: Convert to fraction form
    21,680.91/32,525.96 = 7,640.37/x
  3. Step 3: Cross multiply
    21,680.91x = 32,525.96 × 7,640.37
  4. Step 4: Simplify right side
    21,680.91x = 248,510,330.80
  5. Step 5: Solve for x
    x = 248,510,330.80/21,680.91
  6. Step 6: Final answer
    x = 11,462.17

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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.