Home / 22,564.54-31,138.70-12,492.77

Finding the Fourth Proportional to 22,564.54, 31,138.70 and 12,492.77

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Solution

The fourth proportional to 22,564.54, 31,138.70 and 12,492.77 is: 17,239.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,564.54 : 31,138.70 = 12,492.77 : x
  2. Step 2: Convert to fraction form
    22,564.54/31,138.70 = 12,492.77/x
  3. Step 3: Cross multiply
    22,564.54x = 31,138.70 × 12,492.77
  4. Step 4: Simplify right side
    22,564.54x = 389,008,399.04
  5. Step 5: Solve for x
    x = 389,008,399.04/22,564.54
  6. Step 6: Final answer
    x = 17,239.81

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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.