Home / 18,905.36-28,358.04-5,054

Finding the Fourth Proportional to 18,905.36, 28,358.04 and 5,054

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Solution

The fourth proportional to 18,905.36, 28,358.04 and 5,054 is: 7,581

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.36 : 28,358.04 = 5,054 : x
  2. Step 2: Convert to fraction form
    18,905.36/28,358.04 = 5,054/x
  3. Step 3: Cross multiply
    18,905.36x = 28,358.04 × 5,054
  4. Step 4: Simplify right side
    18,905.36x = 143,321,534.16
  5. Step 5: Solve for x
    x = 143,321,534.16/18,905.36
  6. Step 6: Final answer
    x = 7,581

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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.