Home / 23,129.17-31,917.61-12,919.93

Finding the Fourth Proportional to 23,129.17, 31,917.61 and 12,919.93

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Solution

The fourth proportional to 23,129.17, 31,917.61 and 12,919.93 is: 17,829.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,129.17 : 31,917.61 = 12,919.93 : x
  2. Step 2: Convert to fraction form
    23,129.17/31,917.61 = 12,919.93/x
  3. Step 3: Cross multiply
    23,129.17x = 31,917.61 × 12,919.93
  4. Step 4: Simplify right side
    23,129.17x = 412,373,223.32
  5. Step 5: Solve for x
    x = 412,373,223.32/23,129.17
  6. Step 6: Final answer
    x = 17,829.14

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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.