Home / 30,827.33-42,537.15-18,721.53

Finding the Fourth Proportional to 30,827.33, 42,537.15 and 18,721.53

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Solution

The fourth proportional to 30,827.33, 42,537.15 and 18,721.53 is: 25,832.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,827.33 : 42,537.15 = 18,721.53 : x
  2. Step 2: Convert to fraction form
    30,827.33/42,537.15 = 18,721.53/x
  3. Step 3: Cross multiply
    30,827.33x = 42,537.15 × 18,721.53
  4. Step 4: Simplify right side
    30,827.33x = 796,360,529.84
  5. Step 5: Solve for x
    x = 796,360,529.84/30,827.33
  6. Step 6: Final answer
    x = 25,832.94

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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.