Home / 18,926.10-28,345.38-18,270

Finding the Fourth Proportional to 18,926.10, 28,345.38 and 18,270

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Solution

The fourth proportional to 18,926.10, 28,345.38 and 18,270 is: 27,362.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.10 : 28,345.38 = 18,270 : x
  2. Step 2: Convert to fraction form
    18,926.10/28,345.38 = 18,270/x
  3. Step 3: Cross multiply
    18,926.10x = 28,345.38 × 18,270
  4. Step 4: Simplify right side
    18,926.10x = 517,870,092.60
  5. Step 5: Solve for x
    x = 517,870,092.60/18,926.10
  6. Step 6: Final answer
    x = 27,362.75

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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.