Home / 16,782.78-25,036.95-15,589.65

Finding the Fourth Proportional to 16,782.78, 25,036.95 and 15,589.65

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Solution

The fourth proportional to 16,782.78, 25,036.95 and 15,589.65 is: 23,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,782.78 : 25,036.95 = 15,589.65 : x
  2. Step 2: Convert to fraction form
    16,782.78/25,036.95 = 15,589.65/x
  3. Step 3: Cross multiply
    16,782.78x = 25,036.95 × 15,589.65
  4. Step 4: Simplify right side
    16,782.78x = 390,317,287.57
  5. Step 5: Solve for x
    x = 390,317,287.57/16,782.78
  6. Step 6: Final answer
    x = 23,257.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.