Home / 19,631.08-27,090.61-10,678.66

Finding the Fourth Proportional to 19,631.08, 27,090.61 and 10,678.66

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Solution

The fourth proportional to 19,631.08, 27,090.61 and 10,678.66 is: 14,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,631.08 : 27,090.61 = 10,678.66 : x
  2. Step 2: Convert to fraction form
    19,631.08/27,090.61 = 10,678.66/x
  3. Step 3: Cross multiply
    19,631.08x = 27,090.61 × 10,678.66
  4. Step 4: Simplify right side
    19,631.08x = 289,291,318.96
  5. Step 5: Solve for x
    x = 289,291,318.96/19,631.08
  6. Step 6: Final answer
    x = 14,736.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.