Home / 30,712.82-42,381.96-17,284.64

Finding the Fourth Proportional to 30,712.82, 42,381.96 and 17,284.64

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Solution

The fourth proportional to 30,712.82, 42,381.96 and 17,284.64 is: 23,851.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,712.82 : 42,381.96 = 17,284.64 : x
  2. Step 2: Convert to fraction form
    30,712.82/42,381.96 = 17,284.64/x
  3. Step 3: Cross multiply
    30,712.82x = 42,381.96 × 17,284.64
  4. Step 4: Simplify right side
    30,712.82x = 732,556,921.09
  5. Step 5: Solve for x
    x = 732,556,921.09/30,712.82
  6. Step 6: Final answer
    x = 23,851.83

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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.