Home / 18,984.84-28,480-5,838.32

Finding the Fourth Proportional to 18,984.84, 28,480 and 5,838.32

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Solution

The fourth proportional to 18,984.84, 28,480 and 5,838.32 is: 8,758.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,984.84 : 28,480 = 5,838.32 : x
  2. Step 2: Convert to fraction form
    18,984.84/28,480 = 5,838.32/x
  3. Step 3: Cross multiply
    18,984.84x = 28,480 × 5,838.32
  4. Step 4: Simplify right side
    18,984.84x = 166,275,353.60
  5. Step 5: Solve for x
    x = 166,275,353.60/18,984.84
  6. Step 6: Final answer
    x = 8,758.32

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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.