Home / 30,085.62-41,517.93-18,155.53

Finding the Fourth Proportional to 30,085.62, 41,517.93 and 18,155.53

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Solution

The fourth proportional to 30,085.62, 41,517.93 and 18,155.53 is: 25,054.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,085.62 : 41,517.93 = 18,155.53 : x
  2. Step 2: Convert to fraction form
    30,085.62/41,517.93 = 18,155.53/x
  3. Step 3: Cross multiply
    30,085.62x = 41,517.93 × 18,155.53
  4. Step 4: Simplify right side
    30,085.62x = 753,780,023.65
  5. Step 5: Solve for x
    x = 753,780,023.65/30,085.62
  6. Step 6: Final answer
    x = 25,054.50

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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.