Home / 19,018.64-28,528.06-5,167.64

Finding the Fourth Proportional to 19,018.64, 28,528.06 and 5,167.64

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Solution

The fourth proportional to 19,018.64, 28,528.06 and 5,167.64 is: 7,751.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.64 : 28,528.06 = 5,167.64 : x
  2. Step 2: Convert to fraction form
    19,018.64/28,528.06 = 5,167.64/x
  3. Step 3: Cross multiply
    19,018.64x = 28,528.06 × 5,167.64
  4. Step 4: Simplify right side
    19,018.64x = 147,422,743.98
  5. Step 5: Solve for x
    x = 147,422,743.98/19,018.64
  6. Step 6: Final answer
    x = 7,751.49

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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.