Home / 19,540.06-29,310.12-4,748.99

Finding the Fourth Proportional to 19,540.06, 29,310.12 and 4,748.99

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Solution

The fourth proportional to 19,540.06, 29,310.12 and 4,748.99 is: 7,123.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.06 : 29,310.12 = 4,748.99 : x
  2. Step 2: Convert to fraction form
    19,540.06/29,310.12 = 4,748.99/x
  3. Step 3: Cross multiply
    19,540.06x = 29,310.12 × 4,748.99
  4. Step 4: Simplify right side
    19,540.06x = 139,193,320.23
  5. Step 5: Solve for x
    x = 139,193,320.23/19,540.06
  6. Step 6: Final answer
    x = 7,123.49

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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.