Home / 22,971.08-31,692.42-12,897.80

Finding the Fourth Proportional to 22,971.08, 31,692.42 and 12,897.80

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Solution

The fourth proportional to 22,971.08, 31,692.42 and 12,897.80 is: 17,794.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,971.08 : 31,692.42 = 12,897.80 : x
  2. Step 2: Convert to fraction form
    22,971.08/31,692.42 = 12,897.80/x
  3. Step 3: Cross multiply
    22,971.08x = 31,692.42 × 12,897.80
  4. Step 4: Simplify right side
    22,971.08x = 408,762,494.68
  5. Step 5: Solve for x
    x = 408,762,494.68/22,971.08
  6. Step 6: Final answer
    x = 17,794.66

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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.