Home / 30,138.55-41,584.49-18,037.15

Finding the Fourth Proportional to 30,138.55, 41,584.49 and 18,037.15

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Solution

The fourth proportional to 30,138.55, 41,584.49 and 18,037.15 is: 24,887.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,138.55 : 41,584.49 = 18,037.15 : x
  2. Step 2: Convert to fraction form
    30,138.55/41,584.49 = 18,037.15/x
  3. Step 3: Cross multiply
    30,138.55x = 41,584.49 × 18,037.15
  4. Step 4: Simplify right side
    30,138.55x = 750,065,557.30
  5. Step 5: Solve for x
    x = 750,065,557.30/30,138.55
  6. Step 6: Final answer
    x = 24,887.25

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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.