Home / 27,994.67-38,632.64-15,419.42

Finding the Fourth Proportional to 27,994.67, 38,632.64 and 15,419.42

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Solution

The fourth proportional to 27,994.67, 38,632.64 and 15,419.42 is: 21,278.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,994.67 : 38,632.64 = 15,419.42 : x
  2. Step 2: Convert to fraction form
    27,994.67/38,632.64 = 15,419.42/x
  3. Step 3: Cross multiply
    27,994.67x = 38,632.64 × 15,419.42
  4. Step 4: Simplify right side
    27,994.67x = 595,692,728.19
  5. Step 5: Solve for x
    x = 595,692,728.19/27,994.67
  6. Step 6: Final answer
    x = 21,278.79

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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.