Home / 31,772.96-43,828.47-19,815.54

Finding the Fourth Proportional to 31,772.96, 43,828.47 and 19,815.54

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Solution

The fourth proportional to 31,772.96, 43,828.47 and 19,815.54 is: 27,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,772.96 : 43,828.47 = 19,815.54 : x
  2. Step 2: Convert to fraction form
    31,772.96/43,828.47 = 19,815.54/x
  3. Step 3: Cross multiply
    31,772.96x = 43,828.47 × 19,815.54
  4. Step 4: Simplify right side
    31,772.96x = 868,484,580.34
  5. Step 5: Solve for x
    x = 868,484,580.34/31,772.96
  6. Step 6: Final answer
    x = 27,334.08

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1.5x scale

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.