Home / 30,122-41,569.84-18,185.12

Finding the Fourth Proportional to 30,122, 41,569.84 and 18,185.12

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Solution

The fourth proportional to 30,122, 41,569.84 and 18,185.12 is: 25,096.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122 : 41,569.84 = 18,185.12 : x
  2. Step 2: Convert to fraction form
    30,122/41,569.84 = 18,185.12/x
  3. Step 3: Cross multiply
    30,122x = 41,569.84 × 18,185.12
  4. Step 4: Simplify right side
    30,122x = 755,952,528.78
  5. Step 5: Solve for x
    x = 755,952,528.78/30,122
  6. Step 6: Final answer
    x = 25,096.36

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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.