Home / 27,993.29-38,630.74-15,418.04

Finding the Fourth Proportional to 27,993.29, 38,630.74 and 15,418.04

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Solution

The fourth proportional to 27,993.29, 38,630.74 and 15,418.04 is: 21,276.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,993.29 : 38,630.74 = 15,418.04 : x
  2. Step 2: Convert to fraction form
    27,993.29/38,630.74 = 15,418.04/x
  3. Step 3: Cross multiply
    27,993.29x = 38,630.74 × 15,418.04
  4. Step 4: Simplify right side
    27,993.29x = 595,610,157.05
  5. Step 5: Solve for x
    x = 595,610,157.05/27,993.29
  6. Step 6: Final answer
    x = 21,276.89

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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.