Home / 23,002.28-31,739.26-12,929.38

Finding the Fourth Proportional to 23,002.28, 31,739.26 and 12,929.38

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Solution

The fourth proportional to 23,002.28, 31,739.26 and 12,929.38 is: 17,840.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,002.28 : 31,739.26 = 12,929.38 : x
  2. Step 2: Convert to fraction form
    23,002.28/31,739.26 = 12,929.38/x
  3. Step 3: Cross multiply
    23,002.28x = 31,739.26 × 12,929.38
  4. Step 4: Simplify right side
    23,002.28x = 410,368,953.46
  5. Step 5: Solve for x
    x = 410,368,953.46/23,002.28
  6. Step 6: Final answer
    x = 17,840.36

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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.