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Finding the Fourth Proportional to 27,419.82, 37,839.06 and 15,482.45

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Solution

The fourth proportional to 27,419.82, 37,839.06 and 15,482.45 is: 21,365.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,419.82 : 37,839.06 = 15,482.45 : x
  2. Step 2: Convert to fraction form
    27,419.82/37,839.06 = 15,482.45/x
  3. Step 3: Cross multiply
    27,419.82x = 37,839.06 × 15,482.45
  4. Step 4: Simplify right side
    27,419.82x = 585,841,354.50
  5. Step 5: Solve for x
    x = 585,841,354.50/27,419.82
  6. Step 6: Final answer
    x = 21,365.62

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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.