Home / 39,597.65-54,644.78-21,693.31

Finding the Fourth Proportional to 39,597.65, 54,644.78 and 21,693.31

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Solution

The fourth proportional to 39,597.65, 54,644.78 and 21,693.31 is: 29,936.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,597.65 : 54,644.78 = 21,693.31 : x
  2. Step 2: Convert to fraction form
    39,597.65/54,644.78 = 21,693.31/x
  3. Step 3: Cross multiply
    39,597.65x = 54,644.78 × 21,693.31
  4. Step 4: Simplify right side
    39,597.65x = 1,185,426,152.42
  5. Step 5: Solve for x
    x = 1,185,426,152.42/39,597.65
  6. Step 6: Final answer
    x = 29,936.78

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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.