Home / 28,381.98-42,572.97-13,183.03

Finding the Fourth Proportional to 28,381.98, 42,572.97 and 13,183.03

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Solution

The fourth proportional to 28,381.98, 42,572.97 and 13,183.03 is: 19,774.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,381.98 : 42,572.97 = 13,183.03 : x
  2. Step 2: Convert to fraction form
    28,381.98/42,572.97 = 13,183.03/x
  3. Step 3: Cross multiply
    28,381.98x = 42,572.97 × 13,183.03
  4. Step 4: Simplify right side
    28,381.98x = 561,240,740.70
  5. Step 5: Solve for x
    x = 561,240,740.70/28,381.98
  6. Step 6: Final answer
    x = 19,774.55

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.