Home / 27,325.20-37,712.34-15,390.84

Finding the Fourth Proportional to 27,325.20, 37,712.34 and 15,390.84

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Solution

The fourth proportional to 27,325.20, 37,712.34 and 15,390.84 is: 21,241.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,325.20 : 37,712.34 = 15,390.84 : x
  2. Step 2: Convert to fraction form
    27,325.20/37,712.34 = 15,390.84/x
  3. Step 3: Cross multiply
    27,325.20x = 37,712.34 × 15,390.84
  4. Step 4: Simplify right side
    27,325.20x = 580,424,590.97
  5. Step 5: Solve for x
    x = 580,424,590.97/27,325.20
  6. Step 6: Final answer
    x = 21,241.37

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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.