Home / 39,571.18-54,606.54-21,665.86

Finding the Fourth Proportional to 39,571.18, 54,606.54 and 21,665.86

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Solution

The fourth proportional to 39,571.18, 54,606.54 and 21,665.86 is: 29,897.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,571.18 : 54,606.54 = 21,665.86 : x
  2. Step 2: Convert to fraction form
    39,571.18/54,606.54 = 21,665.86/x
  3. Step 3: Cross multiply
    39,571.18x = 54,606.54 × 21,665.86
  4. Step 4: Simplify right side
    39,571.18x = 1,183,097,650.72
  5. Step 5: Solve for x
    x = 1,183,097,650.72/39,571.18
  6. Step 6: Final answer
    x = 29,897.96

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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.