Home / 27,993.34-38,630.81-15,418.09

Finding the Fourth Proportional to 27,993.34, 38,630.81 and 15,418.09

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Solution

The fourth proportional to 27,993.34, 38,630.81 and 15,418.09 is: 21,276.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,993.34 : 38,630.81 = 15,418.09 : x
  2. Step 2: Convert to fraction form
    27,993.34/38,630.81 = 15,418.09/x
  3. Step 3: Cross multiply
    27,993.34x = 38,630.81 × 15,418.09
  4. Step 4: Simplify right side
    27,993.34x = 595,613,294.50
  5. Step 5: Solve for x
    x = 595,613,294.50/27,993.34
  6. Step 6: Final answer
    x = 21,276.96

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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.