Home / 30,064.18-41,490.06-18,131.38

Finding the Fourth Proportional to 30,064.18, 41,490.06 and 18,131.38

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Solution

The fourth proportional to 30,064.18, 41,490.06 and 18,131.38 is: 25,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,064.18 : 41,490.06 = 18,131.38 : x
  2. Step 2: Convert to fraction form
    30,064.18/41,490.06 = 18,131.38/x
  3. Step 3: Cross multiply
    30,064.18x = 41,490.06 × 18,131.38
  4. Step 4: Simplify right side
    30,064.18x = 752,272,044.08
  5. Step 5: Solve for x
    x = 752,272,044.08/30,064.18
  6. Step 6: Final answer
    x = 25,022.20

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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.