Home / 19,740.57-27,241.17-11,679.45

Finding the Fourth Proportional to 19,740.57, 27,241.17 and 11,679.45

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Solution

The fourth proportional to 19,740.57, 27,241.17 and 11,679.45 is: 16,117.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.57 : 27,241.17 = 11,679.45 : x
  2. Step 2: Convert to fraction form
    19,740.57/27,241.17 = 11,679.45/x
  3. Step 3: Cross multiply
    19,740.57x = 27,241.17 × 11,679.45
  4. Step 4: Simplify right side
    19,740.57x = 318,161,882.96
  5. Step 5: Solve for x
    x = 318,161,882.96/19,740.57
  6. Step 6: Final answer
    x = 16,117.16

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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.