Home / 19,740.89-27,241.28-10,788.47

Finding the Fourth Proportional to 19,740.89, 27,241.28 and 10,788.47

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Solution

The fourth proportional to 19,740.89, 27,241.28 and 10,788.47 is: 14,887.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.89 : 27,241.28 = 10,788.47 : x
  2. Step 2: Convert to fraction form
    19,740.89/27,241.28 = 10,788.47/x
  3. Step 3: Cross multiply
    19,740.89x = 27,241.28 × 10,788.47
  4. Step 4: Simplify right side
    19,740.89x = 293,891,732.04
  5. Step 5: Solve for x
    x = 293,891,732.04/19,740.89
  6. Step 6: Final answer
    x = 14,887.46

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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.