Home / 25,120.53-37,680.84-18,801.99

Finding the Fourth Proportional to 25,120.53, 37,680.84 and 18,801.99

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Solution

The fourth proportional to 25,120.53, 37,680.84 and 18,801.99 is: 28,203.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,120.53 : 37,680.84 = 18,801.99 : x
  2. Step 2: Convert to fraction form
    25,120.53/37,680.84 = 18,801.99/x
  3. Step 3: Cross multiply
    25,120.53x = 37,680.84 × 18,801.99
  4. Step 4: Simplify right side
    25,120.53x = 708,474,776.87
  5. Step 5: Solve for x
    x = 708,474,776.87/25,120.53
  6. Step 6: Final answer
    x = 28,203.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.