Home / 20,359.07-28,096.06-11,406.37

Finding the Fourth Proportional to 20,359.07, 28,096.06 and 11,406.37

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Solution

The fourth proportional to 20,359.07, 28,096.06 and 11,406.37 is: 15,741.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.07 : 28,096.06 = 11,406.37 : x
  2. Step 2: Convert to fraction form
    20,359.07/28,096.06 = 11,406.37/x
  3. Step 3: Cross multiply
    20,359.07x = 28,096.06 × 11,406.37
  4. Step 4: Simplify right side
    20,359.07x = 320,474,055.90
  5. Step 5: Solve for x
    x = 320,474,055.90/20,359.07
  6. Step 6: Final answer
    x = 15,741.10

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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.