Home / 20,230.56-27,915.44-11,277.63

Finding the Fourth Proportional to 20,230.56, 27,915.44 and 11,277.63

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Solution

The fourth proportional to 20,230.56, 27,915.44 and 11,277.63 is: 15,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.56 : 27,915.44 = 11,277.63 : x
  2. Step 2: Convert to fraction form
    20,230.56/27,915.44 = 11,277.63/x
  3. Step 3: Cross multiply
    20,230.56x = 27,915.44 × 11,277.63
  4. Step 4: Simplify right side
    20,230.56x = 314,819,947.22
  5. Step 5: Solve for x
    x = 314,819,947.22/20,230.56
  6. Step 6: Final answer
    x = 15,561.60

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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.