Home / 31,551.44-47,345.25-12,828.02

Finding the Fourth Proportional to 31,551.44, 47,345.25 and 12,828.02

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Solution

The fourth proportional to 31,551.44, 47,345.25 and 12,828.02 is: 19,249.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,551.44 : 47,345.25 = 12,828.02 : x
  2. Step 2: Convert to fraction form
    31,551.44/47,345.25 = 12,828.02/x
  3. Step 3: Cross multiply
    31,551.44x = 47,345.25 × 12,828.02
  4. Step 4: Simplify right side
    31,551.44x = 607,345,813.91
  5. Step 5: Solve for x
    x = 607,345,813.91/31,551.44
  6. Step 6: Final answer
    x = 19,249.38

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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.