Home / 21,448.20-32,175.42-6,658.32

Finding the Fourth Proportional to 21,448.20, 32,175.42 and 6,658.32

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Solution

The fourth proportional to 21,448.20, 32,175.42 and 6,658.32 is: 9,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.20 : 32,175.42 = 6,658.32 : x
  2. Step 2: Convert to fraction form
    21,448.20/32,175.42 = 6,658.32/x
  3. Step 3: Cross multiply
    21,448.20x = 32,175.42 × 6,658.32
  4. Step 4: Simplify right side
    21,448.20x = 214,234,242.49
  5. Step 5: Solve for x
    x = 214,234,242.49/21,448.20
  6. Step 6: Final answer
    x = 9,988.45

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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.