Home / 37,150.85-51,269.05-21,236.78

Finding the Fourth Proportional to 37,150.85, 51,269.05 and 21,236.78

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Solution

The fourth proportional to 37,150.85, 51,269.05 and 21,236.78 is: 29,307.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,150.85 : 51,269.05 = 21,236.78 : x
  2. Step 2: Convert to fraction form
    37,150.85/51,269.05 = 21,236.78/x
  3. Step 3: Cross multiply
    37,150.85x = 51,269.05 × 21,236.78
  4. Step 4: Simplify right side
    37,150.85x = 1,088,789,690.38
  5. Step 5: Solve for x
    x = 1,088,789,690.38/37,150.85
  6. Step 6: Final answer
    x = 29,307.26

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Double scale
Find fourth proportional to 37,151.85, 51,270.43 and 21,237.78
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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.