Home / 30,142.20-41,601.02-18,207.26

Finding the Fourth Proportional to 30,142.20, 41,601.02 and 18,207.26

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Solution

The fourth proportional to 30,142.20, 41,601.02 and 18,207.26 is: 25,128.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,142.20 : 41,601.02 = 18,207.26 : x
  2. Step 2: Convert to fraction form
    30,142.20/41,601.02 = 18,207.26/x
  3. Step 3: Cross multiply
    30,142.20x = 41,601.02 × 18,207.26
  4. Step 4: Simplify right side
    30,142.20x = 757,440,587.41
  5. Step 5: Solve for x
    x = 757,440,587.41/30,142.20
  6. Step 6: Final answer
    x = 25,128.91

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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.