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Finding the Fourth Proportional to 34,771.40, 47,984.11 and 18,855.66

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Solution

The fourth proportional to 34,771.40, 47,984.11 and 18,855.66 is: 26,020.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,771.40 : 47,984.11 = 18,855.66 : x
  2. Step 2: Convert to fraction form
    34,771.40/47,984.11 = 18,855.66/x
  3. Step 3: Cross multiply
    34,771.40x = 47,984.11 × 18,855.66
  4. Step 4: Simplify right side
    34,771.40x = 904,771,823.64
  5. Step 5: Solve for x
    x = 904,771,823.64/34,771.40
  6. Step 6: Final answer
    x = 26,020.58

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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.