Home / 25,147.87-34,704.80-13,818.07

Finding the Fourth Proportional to 25,147.87, 34,704.80 and 13,818.07

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Solution

The fourth proportional to 25,147.87, 34,704.80 and 13,818.07 is: 19,069.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,147.87 : 34,704.80 = 13,818.07 : x
  2. Step 2: Convert to fraction form
    25,147.87/34,704.80 = 13,818.07/x
  3. Step 3: Cross multiply
    25,147.87x = 34,704.80 × 13,818.07
  4. Step 4: Simplify right side
    25,147.87x = 479,553,361.96
  5. Step 5: Solve for x
    x = 479,553,361.96/25,147.87
  6. Step 6: Final answer
    x = 19,069.35

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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.