Home / 21,373.38-29,503.49-19,131.30

Finding the Fourth Proportional to 21,373.38, 29,503.49 and 19,131.30

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Solution

The fourth proportional to 21,373.38, 29,503.49 and 19,131.30 is: 26,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,373.38 : 29,503.49 = 19,131.30 : x
  2. Step 2: Convert to fraction form
    21,373.38/29,503.49 = 19,131.30/x
  3. Step 3: Cross multiply
    21,373.38x = 29,503.49 × 19,131.30
  4. Step 4: Simplify right side
    21,373.38x = 564,440,022.58
  5. Step 5: Solve for x
    x = 564,440,022.58/21,373.38
  6. Step 6: Final answer
    x = 26,408.55

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Half scale
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Double scale
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Similar ratio
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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.