Home / 19,631.18-27,090.75-10,678.75

Finding the Fourth Proportional to 19,631.18, 27,090.75 and 10,678.75

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Solution

The fourth proportional to 19,631.18, 27,090.75 and 10,678.75 is: 14,736.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,631.18 : 27,090.75 = 10,678.75 : x
  2. Step 2: Convert to fraction form
    19,631.18/27,090.75 = 10,678.75/x
  3. Step 3: Cross multiply
    19,631.18x = 27,090.75 × 10,678.75
  4. Step 4: Simplify right side
    19,631.18x = 289,295,318.88
  5. Step 5: Solve for x
    x = 289,295,318.88/19,631.18
  6. Step 6: Final answer
    x = 14,736.52

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1.5x scale

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.