Home / 27,484.75-37,905.57-21,126.76

Finding the Fourth Proportional to 27,484.75, 37,905.57 and 21,126.76

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Solution

The fourth proportional to 27,484.75, 37,905.57 and 21,126.76 is: 29,136.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,484.75 : 37,905.57 = 21,126.76 : x
  2. Step 2: Convert to fraction form
    27,484.75/37,905.57 = 21,126.76/x
  3. Step 3: Cross multiply
    27,484.75x = 37,905.57 × 21,126.76
  4. Step 4: Simplify right side
    27,484.75x = 800,821,880.05
  5. Step 5: Solve for x
    x = 800,821,880.05/27,484.75
  6. Step 6: Final answer
    x = 29,136.95

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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.