Home / 21,442.34-32,183.12-10,919.63

Finding the Fourth Proportional to 21,442.34, 32,183.12 and 10,919.63

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Solution

The fourth proportional to 21,442.34, 32,183.12 and 10,919.63 is: 16,389.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,442.34 : 32,183.12 = 10,919.63 : x
  2. Step 2: Convert to fraction form
    21,442.34/32,183.12 = 10,919.63/x
  3. Step 3: Cross multiply
    21,442.34x = 32,183.12 × 10,919.63
  4. Step 4: Simplify right side
    21,442.34x = 351,427,547.13
  5. Step 5: Solve for x
    x = 351,427,547.13/21,442.34
  6. Step 6: Final answer
    x = 16,389.43

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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.