Home / 39,580.47-54,618.93-21,672.09

Finding the Fourth Proportional to 39,580.47, 54,618.93 and 21,672.09

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Solution

The fourth proportional to 39,580.47, 54,618.93 and 21,672.09 is: 29,906.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,580.47 : 54,618.93 = 21,672.09 : x
  2. Step 2: Convert to fraction form
    39,580.47/54,618.93 = 21,672.09/x
  3. Step 3: Cross multiply
    39,580.47x = 54,618.93 × 21,672.09
  4. Step 4: Simplify right side
    39,580.47x = 1,183,706,366.66
  5. Step 5: Solve for x
    x = 1,183,706,366.66/39,580.47
  6. Step 6: Final answer
    x = 29,906.32

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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.