Home / 20,958.69-28,964.48-17,175.89

Finding the Fourth Proportional to 20,958.69, 28,964.48 and 17,175.89

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Solution

The fourth proportional to 20,958.69, 28,964.48 and 17,175.89 is: 23,736.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958.69 : 28,964.48 = 17,175.89 : x
  2. Step 2: Convert to fraction form
    20,958.69/28,964.48 = 17,175.89/x
  3. Step 3: Cross multiply
    20,958.69x = 28,964.48 × 17,175.89
  4. Step 4: Simplify right side
    20,958.69x = 497,490,491.69
  5. Step 5: Solve for x
    x = 497,490,491.69/20,958.69
  6. Step 6: Final answer
    x = 23,736.72

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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.