Home / 21,931.26-32,913.90-8,792.25

Finding the Fourth Proportional to 21,931.26, 32,913.90 and 8,792.25

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Solution

The fourth proportional to 21,931.26, 32,913.90 and 8,792.25 is: 13,195.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,931.26 : 32,913.90 = 8,792.25 : x
  2. Step 2: Convert to fraction form
    21,931.26/32,913.90 = 8,792.25/x
  3. Step 3: Cross multiply
    21,931.26x = 32,913.90 × 8,792.25
  4. Step 4: Simplify right side
    21,931.26x = 289,387,237.28
  5. Step 5: Solve for x
    x = 289,387,237.28/21,931.26
  6. Step 6: Final answer
    x = 13,195.19

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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.