Home / 25,340.87-34,969.31-13,855.58

Finding the Fourth Proportional to 25,340.87, 34,969.31 and 13,855.58

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Solution

The fourth proportional to 25,340.87, 34,969.31 and 13,855.58 is: 19,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,340.87 : 34,969.31 = 13,855.58 : x
  2. Step 2: Convert to fraction form
    25,340.87/34,969.31 = 13,855.58/x
  3. Step 3: Cross multiply
    25,340.87x = 34,969.31 × 13,855.58
  4. Step 4: Simplify right side
    25,340.87x = 484,519,828.13
  5. Step 5: Solve for x
    x = 484,519,828.13/25,340.87
  6. Step 6: Final answer
    x = 19,120.09

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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.