Home / 21,390.62-32,090.38-6,599.21

Finding the Fourth Proportional to 21,390.62, 32,090.38 and 6,599.21

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Solution

The fourth proportional to 21,390.62, 32,090.38 and 6,599.21 is: 9,900.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390.62 : 32,090.38 = 6,599.21 : x
  2. Step 2: Convert to fraction form
    21,390.62/32,090.38 = 6,599.21/x
  3. Step 3: Cross multiply
    21,390.62x = 32,090.38 × 6,599.21
  4. Step 4: Simplify right side
    21,390.62x = 211,770,979.65
  5. Step 5: Solve for x
    x = 211,770,979.65/21,390.62
  6. Step 6: Final answer
    x = 9,900.18

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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.