Home / 19,121.36-28,690.62-10,346

Finding the Fourth Proportional to 19,121.36, 28,690.62 and 10,346

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Solution

The fourth proportional to 19,121.36, 28,690.62 and 10,346 is: 15,523.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.36 : 28,690.62 = 10,346 : x
  2. Step 2: Convert to fraction form
    19,121.36/28,690.62 = 10,346/x
  3. Step 3: Cross multiply
    19,121.36x = 28,690.62 × 10,346
  4. Step 4: Simplify right side
    19,121.36x = 296,833,154.52
  5. Step 5: Solve for x
    x = 296,833,154.52/19,121.36
  6. Step 6: Final answer
    x = 15,523.64

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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.