Home / 19,772.31-27,285.78-10,819.81

Finding the Fourth Proportional to 19,772.31, 27,285.78 and 10,819.81

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Solution

The fourth proportional to 19,772.31, 27,285.78 and 10,819.81 is: 14,931.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.31 : 27,285.78 = 10,819.81 : x
  2. Step 2: Convert to fraction form
    19,772.31/27,285.78 = 10,819.81/x
  3. Step 3: Cross multiply
    19,772.31x = 27,285.78 × 10,819.81
  4. Step 4: Simplify right side
    19,772.31x = 295,226,846.51
  5. Step 5: Solve for x
    x = 295,226,846.51/19,772.31
  6. Step 6: Final answer
    x = 14,931.33

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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.