Home / 25,764.78-38,661.79-10,972.16

Finding the Fourth Proportional to 25,764.78, 38,661.79 and 10,972.16

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Solution

The fourth proportional to 25,764.78, 38,661.79 and 10,972.16 is: 16,464.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,764.78 : 38,661.79 = 10,972.16 : x
  2. Step 2: Convert to fraction form
    25,764.78/38,661.79 = 10,972.16/x
  3. Step 3: Cross multiply
    25,764.78x = 38,661.79 × 10,972.16
  4. Step 4: Simplify right side
    25,764.78x = 424,203,345.77
  5. Step 5: Solve for x
    x = 424,203,345.77/25,764.78
  6. Step 6: Final answer
    x = 16,464.47

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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.