Home / 19,630.68-27,090.56-10,678.21

Finding the Fourth Proportional to 19,630.68, 27,090.56 and 10,678.21

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Solution

The fourth proportional to 19,630.68, 27,090.56 and 10,678.21 is: 14,736.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.68 : 27,090.56 = 10,678.21 : x
  2. Step 2: Convert to fraction form
    19,630.68/27,090.56 = 10,678.21/x
  3. Step 3: Cross multiply
    19,630.68x = 27,090.56 × 10,678.21
  4. Step 4: Simplify right side
    19,630.68x = 289,278,688.70
  5. Step 5: Solve for x
    x = 289,278,688.70/19,630.68
  6. Step 6: Final answer
    x = 14,736.05

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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.