Home / 22,899.76-31,603.62-12,828.07

Finding the Fourth Proportional to 22,899.76, 31,603.62 and 12,828.07

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Solution

The fourth proportional to 22,899.76, 31,603.62 and 12,828.07 is: 17,703.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,899.76 : 31,603.62 = 12,828.07 : x
  2. Step 2: Convert to fraction form
    22,899.76/31,603.62 = 12,828.07/x
  3. Step 3: Cross multiply
    22,899.76x = 31,603.62 × 12,828.07
  4. Step 4: Simplify right side
    22,899.76x = 405,413,465.07
  5. Step 5: Solve for x
    x = 405,413,465.07/22,899.76
  6. Step 6: Final answer
    x = 17,703.83

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1.5x scale

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.