Home / 30,732.33-42,411.75-17,121.60

Finding the Fourth Proportional to 30,732.33, 42,411.75 and 17,121.60

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Solution

The fourth proportional to 30,732.33, 42,411.75 and 17,121.60 is: 23,628.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,732.33 : 42,411.75 = 17,121.60 : x
  2. Step 2: Convert to fraction form
    30,732.33/42,411.75 = 17,121.60/x
  3. Step 3: Cross multiply
    30,732.33x = 42,411.75 × 17,121.60
  4. Step 4: Simplify right side
    30,732.33x = 726,157,018.80
  5. Step 5: Solve for x
    x = 726,157,018.80/30,732.33
  6. Step 6: Final answer
    x = 23,628.44

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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.