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Finding the Fourth Proportional to 27,419.59, 37,839.81 and 15,484.72

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Solution

The fourth proportional to 27,419.59, 37,839.81 and 15,484.72 is: 21,369.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,419.59 : 37,839.81 = 15,484.72 : x
  2. Step 2: Convert to fraction form
    27,419.59/37,839.81 = 15,484.72/x
  3. Step 3: Cross multiply
    27,419.59x = 37,839.81 × 15,484.72
  4. Step 4: Simplify right side
    27,419.59x = 585,938,810.02
  5. Step 5: Solve for x
    x = 585,938,810.02/27,419.59
  6. Step 6: Final answer
    x = 21,369.35

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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.