Home / 19,307.16-28,944.27-18,388.62

Finding the Fourth Proportional to 19,307.16, 28,944.27 and 18,388.62

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Solution

The fourth proportional to 19,307.16, 28,944.27 and 18,388.62 is: 27,567.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,307.16 : 28,944.27 = 18,388.62 : x
  2. Step 2: Convert to fraction form
    19,307.16/28,944.27 = 18,388.62/x
  3. Step 3: Cross multiply
    19,307.16x = 28,944.27 × 18,388.62
  4. Step 4: Simplify right side
    19,307.16x = 532,245,182.21
  5. Step 5: Solve for x
    x = 532,245,182.21/19,307.16
  6. Step 6: Final answer
    x = 27,567.24

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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.