Home / 21,157.36-31,736.91-17,452.69

Finding the Fourth Proportional to 21,157.36, 31,736.91 and 17,452.69

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Solution

The fourth proportional to 21,157.36, 31,736.91 and 17,452.69 is: 26,179.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,157.36 : 31,736.91 = 17,452.69 : x
  2. Step 2: Convert to fraction form
    21,157.36/31,736.91 = 17,452.69/x
  3. Step 3: Cross multiply
    21,157.36x = 31,736.91 × 17,452.69
  4. Step 4: Simplify right side
    21,157.36x = 553,894,451.79
  5. Step 5: Solve for x
    x = 553,894,451.79/21,157.36
  6. Step 6: Final answer
    x = 26,179.75

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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.