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Finding the Fourth Proportional to 41,989.92, 57,888 and 30,032.40

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Solution

The fourth proportional to 41,989.92, 57,888 and 30,032.40 is: 41,403.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,989.92 : 57,888 = 30,032.40 : x
  2. Step 2: Convert to fraction form
    41,989.92/57,888 = 30,032.40/x
  3. Step 3: Cross multiply
    41,989.92x = 57,888 × 30,032.40
  4. Step 4: Simplify right side
    41,989.92x = 1,738,515,571.20
  5. Step 5: Solve for x
    x = 1,738,515,571.20/41,989.92
  6. Step 6: Final answer
    x = 41,403.16

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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.