Home / 28,804.16-43,143.60-13,981.88

Finding the Fourth Proportional to 28,804.16, 43,143.60 and 13,981.88

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Solution

The fourth proportional to 28,804.16, 43,143.60 and 13,981.88 is: 20,942.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,804.16 : 43,143.60 = 13,981.88 : x
  2. Step 2: Convert to fraction form
    28,804.16/43,143.60 = 13,981.88/x
  3. Step 3: Cross multiply
    28,804.16x = 43,143.60 × 13,981.88
  4. Step 4: Simplify right side
    28,804.16x = 603,228,637.97
  5. Step 5: Solve for x
    x = 603,228,637.97/28,804.16
  6. Step 6: Final answer
    x = 20,942.41

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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.