Home / 30,920.92-42,663.75-17,489.26

Finding the Fourth Proportional to 30,920.92, 42,663.75 and 17,489.26

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Solution

The fourth proportional to 30,920.92, 42,663.75 and 17,489.26 is: 24,131.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,920.92 : 42,663.75 = 17,489.26 : x
  2. Step 2: Convert to fraction form
    30,920.92/42,663.75 = 17,489.26/x
  3. Step 3: Cross multiply
    30,920.92x = 42,663.75 × 17,489.26
  4. Step 4: Simplify right side
    30,920.92x = 746,157,416.33
  5. Step 5: Solve for x
    x = 746,157,416.33/30,920.92
  6. Step 6: Final answer
    x = 24,131.15

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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.