Home / 27,600.66-38,066.76-18,039.78

Finding the Fourth Proportional to 27,600.66, 38,066.76 and 18,039.78

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Solution

The fourth proportional to 27,600.66, 38,066.76 and 18,039.78 is: 24,880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,600.66 : 38,066.76 = 18,039.78 : x
  2. Step 2: Convert to fraction form
    27,600.66/38,066.76 = 18,039.78/x
  3. Step 3: Cross multiply
    27,600.66x = 38,066.76 × 18,039.78
  4. Step 4: Simplify right side
    27,600.66x = 686,715,975.71
  5. Step 5: Solve for x
    x = 686,715,975.71/27,600.66
  6. Step 6: Final answer
    x = 24,880.42

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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.