Home / 38,787.54-53,558.37-31,618.58

Finding the Fourth Proportional to 38,787.54, 53,558.37 and 31,618.58

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Solution

The fourth proportional to 38,787.54, 53,558.37 and 31,618.58 is: 43,659.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,787.54 : 53,558.37 = 31,618.58 : x
  2. Step 2: Convert to fraction form
    38,787.54/53,558.37 = 31,618.58/x
  3. Step 3: Cross multiply
    38,787.54x = 53,558.37 × 31,618.58
  4. Step 4: Simplify right side
    38,787.54x = 1,693,439,606.51
  5. Step 5: Solve for x
    x = 1,693,439,606.51/38,787.54
  6. Step 6: Final answer
    x = 43,659.37

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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.