Home / 31,638.21-47,461.50-11,644.98

Finding the Fourth Proportional to 31,638.21, 47,461.50 and 11,644.98

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Solution

The fourth proportional to 31,638.21, 47,461.50 and 11,644.98 is: 17,469.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,638.21 : 47,461.50 = 11,644.98 : x
  2. Step 2: Convert to fraction form
    31,638.21/47,461.50 = 11,644.98/x
  3. Step 3: Cross multiply
    31,638.21x = 47,461.50 × 11,644.98
  4. Step 4: Simplify right side
    31,638.21x = 552,688,218.27
  5. Step 5: Solve for x
    x = 552,688,218.27/31,638.21
  6. Step 6: Final answer
    x = 17,469.01

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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.