Home / 34,828.76-48,064.64-20,489.60

Finding the Fourth Proportional to 34,828.76, 48,064.64 and 20,489.60

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Solution

The fourth proportional to 34,828.76, 48,064.64 and 20,489.60 is: 28,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,828.76 : 48,064.64 = 20,489.60 : x
  2. Step 2: Convert to fraction form
    34,828.76/48,064.64 = 20,489.60/x
  3. Step 3: Cross multiply
    34,828.76x = 48,064.64 × 20,489.60
  4. Step 4: Simplify right side
    34,828.76x = 984,824,904.97
  5. Step 5: Solve for x
    x = 984,824,904.97/34,828.76
  6. Step 6: Final answer
    x = 28,276.20

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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.