Home / 16,912.26-23,345.46-15,140.79

Finding the Fourth Proportional to 16,912.26, 23,345.46 and 15,140.79

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Solution

The fourth proportional to 16,912.26, 23,345.46 and 15,140.79 is: 20,900.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.26 : 23,345.46 = 15,140.79 : x
  2. Step 2: Convert to fraction form
    16,912.26/23,345.46 = 15,140.79/x
  3. Step 3: Cross multiply
    16,912.26x = 23,345.46 × 15,140.79
  4. Step 4: Simplify right side
    16,912.26x = 353,468,707.31
  5. Step 5: Solve for x
    x = 353,468,707.31/16,912.26
  6. Step 6: Final answer
    x = 20,900.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.