Home / 25,555.96-38,252.94-18,512.20

Finding the Fourth Proportional to 25,555.96, 38,252.94 and 18,512.20

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Solution

The fourth proportional to 25,555.96, 38,252.94 and 18,512.20 is: 27,709.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,555.96 : 38,252.94 = 18,512.20 : x
  2. Step 2: Convert to fraction form
    25,555.96/38,252.94 = 18,512.20/x
  3. Step 3: Cross multiply
    25,555.96x = 38,252.94 × 18,512.20
  4. Step 4: Simplify right side
    25,555.96x = 708,146,075.87
  5. Step 5: Solve for x
    x = 708,146,075.87/25,555.96
  6. Step 6: Final answer
    x = 27,709.63

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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.