Home / 27,899.12-38,496.12-16,721.12

Finding the Fourth Proportional to 27,899.12, 38,496.12 and 16,721.12

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Solution

The fourth proportional to 27,899.12, 38,496.12 and 16,721.12 is: 23,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,899.12 : 38,496.12 = 16,721.12 : x
  2. Step 2: Convert to fraction form
    27,899.12/38,496.12 = 16,721.12/x
  3. Step 3: Cross multiply
    27,899.12x = 38,496.12 × 16,721.12
  4. Step 4: Simplify right side
    27,899.12x = 643,698,242.05
  5. Step 5: Solve for x
    x = 643,698,242.05/27,899.12
  6. Step 6: Final answer
    x = 23,072.35

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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.