Home / 27,994.85-38,632.89-15,419.60

Finding the Fourth Proportional to 27,994.85, 38,632.89 and 15,419.60

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Solution

The fourth proportional to 27,994.85, 38,632.89 and 15,419.60 is: 21,279.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,994.85 : 38,632.89 = 15,419.60 : x
  2. Step 2: Convert to fraction form
    27,994.85/38,632.89 = 15,419.60/x
  3. Step 3: Cross multiply
    27,994.85x = 38,632.89 × 15,419.60
  4. Step 4: Simplify right side
    27,994.85x = 595,703,720.18
  5. Step 5: Solve for x
    x = 595,703,720.18/27,994.85
  6. Step 6: Final answer
    x = 21,279.05

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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.