Home / 30,417.82-41,976.14-16,989.26

Finding the Fourth Proportional to 30,417.82, 41,976.14 and 16,989.26

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Solution

The fourth proportional to 30,417.82, 41,976.14 and 16,989.26 is: 23,444.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,417.82 : 41,976.14 = 16,989.26 : x
  2. Step 2: Convert to fraction form
    30,417.82/41,976.14 = 16,989.26/x
  3. Step 3: Cross multiply
    30,417.82x = 41,976.14 × 16,989.26
  4. Step 4: Simplify right side
    30,417.82x = 713,143,556.26
  5. Step 5: Solve for x
    x = 713,143,556.26/30,417.82
  6. Step 6: Final answer
    x = 23,444.93

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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.