Home / 19,631.62-27,090.86-10,679.12

Finding the Fourth Proportional to 19,631.62, 27,090.86 and 10,679.12

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Solution

The fourth proportional to 19,631.62, 27,090.86 and 10,679.12 is: 14,736.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,631.62 : 27,090.86 = 10,679.12 : x
  2. Step 2: Convert to fraction form
    19,631.62/27,090.86 = 10,679.12/x
  3. Step 3: Cross multiply
    19,631.62x = 27,090.86 × 10,679.12
  4. Step 4: Simplify right side
    19,631.62x = 289,306,457.58
  5. Step 5: Solve for x
    x = 289,306,457.58/19,631.62
  6. Step 6: Final answer
    x = 14,736.76

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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.