Home / 21,645.86-32,442.66-10,535.90

Finding the Fourth Proportional to 21,645.86, 32,442.66 and 10,535.90

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Solution

The fourth proportional to 21,645.86, 32,442.66 and 10,535.90 is: 15,791.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,645.86 : 32,442.66 = 10,535.90 : x
  2. Step 2: Convert to fraction form
    21,645.86/32,442.66 = 10,535.90/x
  3. Step 3: Cross multiply
    21,645.86x = 32,442.66 × 10,535.90
  4. Step 4: Simplify right side
    21,645.86x = 341,812,459.28
  5. Step 5: Solve for x
    x = 341,812,459.28/21,645.86
  6. Step 6: Final answer
    x = 15,791.13

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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.