Home / 30,169.61-41,635.16-18,230.63

Finding the Fourth Proportional to 30,169.61, 41,635.16 and 18,230.63

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Solution

The fourth proportional to 30,169.61, 41,635.16 and 18,230.63 is: 25,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,169.61 : 41,635.16 = 18,230.63 : x
  2. Step 2: Convert to fraction form
    30,169.61/41,635.16 = 18,230.63/x
  3. Step 3: Cross multiply
    30,169.61x = 41,635.16 × 18,230.63
  4. Step 4: Simplify right side
    30,169.61x = 759,034,897.62
  5. Step 5: Solve for x
    x = 759,034,897.62/30,169.61
  6. Step 6: Final answer
    x = 25,158.93

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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.