Home / 19,540.70-29,307.99-5,501.78

Finding the Fourth Proportional to 19,540.70, 29,307.99 and 5,501.78

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Solution

The fourth proportional to 19,540.70, 29,307.99 and 5,501.78 is: 8,251.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.70 : 29,307.99 = 5,501.78 : x
  2. Step 2: Convert to fraction form
    19,540.70/29,307.99 = 5,501.78/x
  3. Step 3: Cross multiply
    19,540.70x = 29,307.99 × 5,501.78
  4. Step 4: Simplify right side
    19,540.70x = 161,246,113.22
  5. Step 5: Solve for x
    x = 161,246,113.22/19,540.70
  6. Step 6: Final answer
    x = 8,251.81

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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.