Home / 30,556.06-42,167.23-17,127.31

Finding the Fourth Proportional to 30,556.06, 42,167.23 and 17,127.31

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Solution

The fourth proportional to 30,556.06, 42,167.23 and 17,127.31 is: 23,635.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,556.06 : 42,167.23 = 17,127.31 : x
  2. Step 2: Convert to fraction form
    30,556.06/42,167.23 = 17,127.31/x
  3. Step 3: Cross multiply
    30,556.06x = 42,167.23 × 17,127.31
  4. Step 4: Simplify right side
    30,556.06x = 722,211,220.05
  5. Step 5: Solve for x
    x = 722,211,220.05/30,556.06
  6. Step 6: Final answer
    x = 23,635.61

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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.