Home / 27,729.49-38,268.08-16,405.62

Finding the Fourth Proportional to 27,729.49, 38,268.08 and 16,405.62

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Solution

The fourth proportional to 27,729.49, 38,268.08 and 16,405.62 is: 22,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,729.49 : 38,268.08 = 16,405.62 : x
  2. Step 2: Convert to fraction form
    27,729.49/38,268.08 = 16,405.62/x
  3. Step 3: Cross multiply
    27,729.49x = 38,268.08 × 16,405.62
  4. Step 4: Simplify right side
    27,729.49x = 627,811,578.61
  5. Step 5: Solve for x
    x = 627,811,578.61/27,729.49
  6. Step 6: Final answer
    x = 22,640.57

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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.