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Finding the Fourth Proportional to 21,599.69, 32,401.28 and 6,610.10

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Solution

The fourth proportional to 21,599.69, 32,401.28 and 6,610.10 is: 9,915.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,599.69 : 32,401.28 = 6,610.10 : x
  2. Step 2: Convert to fraction form
    21,599.69/32,401.28 = 6,610.10/x
  3. Step 3: Cross multiply
    21,599.69x = 32,401.28 × 6,610.10
  4. Step 4: Simplify right side
    21,599.69x = 214,175,555.45
  5. Step 5: Solve for x
    x = 214,175,555.45/21,599.69
  6. Step 6: Final answer
    x = 9,915.68

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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.