Home / 20,784.92-31,317.66-17,168.18

Finding the Fourth Proportional to 20,784.92, 31,317.66 and 17,168.18

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Solution

The fourth proportional to 20,784.92, 31,317.66 and 17,168.18 is: 25,868.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784.92 : 31,317.66 = 17,168.18 : x
  2. Step 2: Convert to fraction form
    20,784.92/31,317.66 = 17,168.18/x
  3. Step 3: Cross multiply
    20,784.92x = 31,317.66 × 17,168.18
  4. Step 4: Simplify right side
    20,784.92x = 537,667,224.06
  5. Step 5: Solve for x
    x = 537,667,224.06/20,784.92
  6. Step 6: Final answer
    x = 25,868.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.