Home / 25,929.05-35,782.54-15,318.65

Finding the Fourth Proportional to 25,929.05, 35,782.54 and 15,318.65

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Solution

The fourth proportional to 25,929.05, 35,782.54 and 15,318.65 is: 21,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,929.05 : 35,782.54 = 15,318.65 : x
  2. Step 2: Convert to fraction form
    25,929.05/35,782.54 = 15,318.65/x
  3. Step 3: Cross multiply
    25,929.05x = 35,782.54 × 15,318.65
  4. Step 4: Simplify right side
    25,929.05x = 548,140,257.53
  5. Step 5: Solve for x
    x = 548,140,257.53/25,929.05
  6. Step 6: Final answer
    x = 21,140.01

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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.