Home / 27,994.05-38,630.39-15,418.53

Finding the Fourth Proportional to 27,994.05, 38,630.39 and 15,418.53

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Solution

The fourth proportional to 27,994.05, 38,630.39 and 15,418.53 is: 21,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,994.05 : 38,630.39 = 15,418.53 : x
  2. Step 2: Convert to fraction form
    27,994.05/38,630.39 = 15,418.53/x
  3. Step 3: Cross multiply
    27,994.05x = 38,630.39 × 15,418.53
  4. Step 4: Simplify right side
    27,994.05x = 595,623,750.03
  5. Step 5: Solve for x
    x = 595,623,750.03/27,994.05
  6. Step 6: Final answer
    x = 21,276.80

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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.