Home / 27,781.58-41,647.77-21,236.99

Finding the Fourth Proportional to 27,781.58, 41,647.77 and 21,236.99

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Solution

The fourth proportional to 27,781.58, 41,647.77 and 21,236.99 is: 31,836.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,781.58 : 41,647.77 = 21,236.99 : x
  2. Step 2: Convert to fraction form
    27,781.58/41,647.77 = 21,236.99/x
  3. Step 3: Cross multiply
    27,781.58x = 41,647.77 × 21,236.99
  4. Step 4: Simplify right side
    27,781.58x = 884,473,066.77
  5. Step 5: Solve for x
    x = 884,473,066.77/27,781.58
  6. Step 6: Final answer
    x = 31,836.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.