Home / 27,119.53-40,523.81-20,672.45

Finding the Fourth Proportional to 27,119.53, 40,523.81 and 20,672.45

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Solution

The fourth proportional to 27,119.53, 40,523.81 and 20,672.45 is: 30,890.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,119.53 : 40,523.81 = 20,672.45 : x
  2. Step 2: Convert to fraction form
    27,119.53/40,523.81 = 20,672.45/x
  3. Step 3: Cross multiply
    27,119.53x = 40,523.81 × 20,672.45
  4. Step 4: Simplify right side
    27,119.53x = 837,726,436.03
  5. Step 5: Solve for x
    x = 837,726,436.03/27,119.53
  6. Step 6: Final answer
    x = 30,890.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.