Home / 30,642.22-42,288.25-17,031.79

Finding the Fourth Proportional to 30,642.22, 42,288.25 and 17,031.79

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Solution

The fourth proportional to 30,642.22, 42,288.25 and 17,031.79 is: 23,504.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,642.22 : 42,288.25 = 17,031.79 : x
  2. Step 2: Convert to fraction form
    30,642.22/42,288.25 = 17,031.79/x
  3. Step 3: Cross multiply
    30,642.22x = 42,288.25 × 17,031.79
  4. Step 4: Simplify right side
    30,642.22x = 720,244,593.47
  5. Step 5: Solve for x
    x = 720,244,593.47/30,642.22
  6. Step 6: Final answer
    x = 23,504.97

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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.