Home / 17,828.71-26,733.21-12,212.81

Finding the Fourth Proportional to 17,828.71, 26,733.21 and 12,212.81

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Solution

The fourth proportional to 17,828.71, 26,733.21 and 12,212.81 is: 18,312.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,828.71 : 26,733.21 = 12,212.81 : x
  2. Step 2: Convert to fraction form
    17,828.71/26,733.21 = 12,212.81/x
  3. Step 3: Cross multiply
    17,828.71x = 26,733.21 × 12,212.81
  4. Step 4: Simplify right side
    17,828.71x = 326,487,535.21
  5. Step 5: Solve for x
    x = 326,487,535.21/17,828.71
  6. Step 6: Final answer
    x = 18,312.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.