Home / 30,216.15-41,690.75-18,118.53

Finding the Fourth Proportional to 30,216.15, 41,690.75 and 18,118.53

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Solution

The fourth proportional to 30,216.15, 41,690.75 and 18,118.53 is: 24,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,216.15 : 41,690.75 = 18,118.53 : x
  2. Step 2: Convert to fraction form
    30,216.15/41,690.75 = 18,118.53/x
  3. Step 3: Cross multiply
    30,216.15x = 41,690.75 × 18,118.53
  4. Step 4: Simplify right side
    30,216.15x = 755,375,014.00
  5. Step 5: Solve for x
    x = 755,375,014.00/30,216.15
  6. Step 6: Final answer
    x = 24,999.05

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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.