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Finding the Fourth Proportional to 31,469.19, 47,269.41 and 18,347.19

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Solution

The fourth proportional to 31,469.19, 47,269.41 and 18,347.19 is: 27,559.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.19 : 47,269.41 = 18,347.19 : x
  2. Step 2: Convert to fraction form
    31,469.19/47,269.41 = 18,347.19/x
  3. Step 3: Cross multiply
    31,469.19x = 47,269.41 × 18,347.19
  4. Step 4: Simplify right side
    31,469.19x = 867,260,846.46
  5. Step 5: Solve for x
    x = 867,260,846.46/31,469.19
  6. Step 6: Final answer
    x = 27,559.05

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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.