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Finding the Fourth Proportional to 27,307.70, 40,961.55 and 9,771.20

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Solution

The fourth proportional to 27,307.70, 40,961.55 and 9,771.20 is: 14,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,307.70 : 40,961.55 = 9,771.20 : x
  2. Step 2: Convert to fraction form
    27,307.70/40,961.55 = 9,771.20/x
  3. Step 3: Cross multiply
    27,307.70x = 40,961.55 × 9,771.20
  4. Step 4: Simplify right side
    27,307.70x = 400,243,497.36
  5. Step 5: Solve for x
    x = 400,243,497.36/27,307.70
  6. Step 6: Final answer
    x = 14,656.80

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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.