Home / 20,629.08-30,911.22-15,960.71

Finding the Fourth Proportional to 20,629.08, 30,911.22 and 15,960.71

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Solution

The fourth proportional to 20,629.08, 30,911.22 and 15,960.71 is: 23,916.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.08 : 30,911.22 = 15,960.71 : x
  2. Step 2: Convert to fraction form
    20,629.08/30,911.22 = 15,960.71/x
  3. Step 3: Cross multiply
    20,629.08x = 30,911.22 × 15,960.71
  4. Step 4: Simplify right side
    20,629.08x = 493,365,095.44
  5. Step 5: Solve for x
    x = 493,365,095.44/20,629.08
  6. Step 6: Final answer
    x = 23,916.00

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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.