Home / 28,678.28-43,018.16-13,884.44

Finding the Fourth Proportional to 28,678.28, 43,018.16 and 13,884.44

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Solution

The fourth proportional to 28,678.28, 43,018.16 and 13,884.44 is: 20,827.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.28 : 43,018.16 = 13,884.44 : x
  2. Step 2: Convert to fraction form
    28,678.28/43,018.16 = 13,884.44/x
  3. Step 3: Cross multiply
    28,678.28x = 43,018.16 × 13,884.44
  4. Step 4: Simplify right side
    28,678.28x = 597,282,776.92
  5. Step 5: Solve for x
    x = 597,282,776.92/28,678.28
  6. Step 6: Final answer
    x = 20,827.01

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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.