Home / 30,682.16-42,340.82-17,070.14

Finding the Fourth Proportional to 30,682.16, 42,340.82 and 17,070.14

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Solution

The fourth proportional to 30,682.16, 42,340.82 and 17,070.14 is: 23,556.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,682.16 : 42,340.82 = 17,070.14 : x
  2. Step 2: Convert to fraction form
    30,682.16/42,340.82 = 17,070.14/x
  3. Step 3: Cross multiply
    30,682.16x = 42,340.82 × 17,070.14
  4. Step 4: Simplify right side
    30,682.16x = 722,763,725.11
  5. Step 5: Solve for x
    x = 722,763,725.11/30,682.16
  6. Step 6: Final answer
    x = 23,556.48

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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.