Home / 25,693.55-38,477.43-21,223.87

Finding the Fourth Proportional to 25,693.55, 38,477.43 and 21,223.87

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Solution

The fourth proportional to 25,693.55, 38,477.43 and 21,223.87 is: 31,783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,693.55 : 38,477.43 = 21,223.87 : x
  2. Step 2: Convert to fraction form
    25,693.55/38,477.43 = 21,223.87/x
  3. Step 3: Cross multiply
    25,693.55x = 38,477.43 × 21,223.87
  4. Step 4: Simplify right side
    25,693.55x = 816,640,092.50
  5. Step 5: Solve for x
    x = 816,640,092.50/25,693.55
  6. Step 6: Final answer
    x = 31,783.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.