Home / 23,174.90-31,981.40-12,564.56

Finding the Fourth Proportional to 23,174.90, 31,981.40 and 12,564.56

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Solution

The fourth proportional to 23,174.90, 31,981.40 and 12,564.56 is: 17,339.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,174.90 : 31,981.40 = 12,564.56 : x
  2. Step 2: Convert to fraction form
    23,174.90/31,981.40 = 12,564.56/x
  3. Step 3: Cross multiply
    23,174.90x = 31,981.40 × 12,564.56
  4. Step 4: Simplify right side
    23,174.90x = 401,832,219.18
  5. Step 5: Solve for x
    x = 401,832,219.18/23,174.90
  6. Step 6: Final answer
    x = 17,339.11

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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.