Home / 22,675.57-31,290.91-12,603.68

Finding the Fourth Proportional to 22,675.57, 31,290.91 and 12,603.68

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Solution

The fourth proportional to 22,675.57, 31,290.91 and 12,603.68 is: 17,392.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,675.57 : 31,290.91 = 12,603.68 : x
  2. Step 2: Convert to fraction form
    22,675.57/31,290.91 = 12,603.68/x
  3. Step 3: Cross multiply
    22,675.57x = 31,290.91 × 12,603.68
  4. Step 4: Simplify right side
    22,675.57x = 394,380,616.55
  5. Step 5: Solve for x
    x = 394,380,616.55/22,675.57
  6. Step 6: Final answer
    x = 17,392.31

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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.