Home / 20,692.13-31,047.30-6,841.13

Finding the Fourth Proportional to 20,692.13, 31,047.30 and 6,841.13

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Solution

The fourth proportional to 20,692.13, 31,047.30 and 6,841.13 is: 10,264.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,692.13 : 31,047.30 = 6,841.13 : x
  2. Step 2: Convert to fraction form
    20,692.13/31,047.30 = 6,841.13/x
  3. Step 3: Cross multiply
    20,692.13x = 31,047.30 × 6,841.13
  4. Step 4: Simplify right side
    20,692.13x = 212,398,460.21
  5. Step 5: Solve for x
    x = 212,398,460.21/20,692.13
  6. Step 6: Final answer
    x = 10,264.70

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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.