Home / 23,108.13-31,889.48-13,553.67

Finding the Fourth Proportional to 23,108.13, 31,889.48 and 13,553.67

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Solution

The fourth proportional to 23,108.13, 31,889.48 and 13,553.67 is: 18,704.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,108.13 : 31,889.48 = 13,553.67 : x
  2. Step 2: Convert to fraction form
    23,108.13/31,889.48 = 13,553.67/x
  3. Step 3: Cross multiply
    23,108.13x = 31,889.48 × 13,553.67
  4. Step 4: Simplify right side
    23,108.13x = 432,219,420.62
  5. Step 5: Solve for x
    x = 432,219,420.62/23,108.13
  6. Step 6: Final answer
    x = 18,704.21

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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.