Home / 28,119.48-42,175.77-17,590.42

Finding the Fourth Proportional to 28,119.48, 42,175.77 and 17,590.42

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Solution

The fourth proportional to 28,119.48, 42,175.77 and 17,590.42 is: 26,383.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.48 : 42,175.77 = 17,590.42 : x
  2. Step 2: Convert to fraction form
    28,119.48/42,175.77 = 17,590.42/x
  3. Step 3: Cross multiply
    28,119.48x = 42,175.77 × 17,590.42
  4. Step 4: Simplify right side
    28,119.48x = 741,889,508.12
  5. Step 5: Solve for x
    x = 741,889,508.12/28,119.48
  6. Step 6: Final answer
    x = 26,383.47

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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.