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Finding the Fourth Proportional to 34,687.02, 47,868.10 and 18,771.42

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Solution

The fourth proportional to 34,687.02, 47,868.10 and 18,771.42 is: 25,904.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,687.02 : 47,868.10 = 18,771.42 : x
  2. Step 2: Convert to fraction form
    34,687.02/47,868.10 = 18,771.42/x
  3. Step 3: Cross multiply
    34,687.02x = 47,868.10 × 18,771.42
  4. Step 4: Simplify right side
    34,687.02x = 898,552,209.70
  5. Step 5: Solve for x
    x = 898,552,209.70/34,687.02
  6. Step 6: Final answer
    x = 25,904.57

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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.