Home / 40,728.58-61,107.99-13,028.74

Finding the Fourth Proportional to 40,728.58, 61,107.99 and 13,028.74

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Solution

The fourth proportional to 40,728.58, 61,107.99 and 13,028.74 is: 19,547.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,728.58 : 61,107.99 = 13,028.74 : x
  2. Step 2: Convert to fraction form
    40,728.58/61,107.99 = 13,028.74/x
  3. Step 3: Cross multiply
    40,728.58x = 61,107.99 × 13,028.74
  4. Step 4: Simplify right side
    40,728.58x = 796,160,113.63
  5. Step 5: Solve for x
    x = 796,160,113.63/40,728.58
  6. Step 6: Final answer
    x = 19,547.95

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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.