Home / 20,529.23-28,330.22-11,576.81

Finding the Fourth Proportional to 20,529.23, 28,330.22 and 11,576.81

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Solution

The fourth proportional to 20,529.23, 28,330.22 and 11,576.81 is: 15,975.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.23 : 28,330.22 = 11,576.81 : x
  2. Step 2: Convert to fraction form
    20,529.23/28,330.22 = 11,576.81/x
  3. Step 3: Cross multiply
    20,529.23x = 28,330.22 × 11,576.81
  4. Step 4: Simplify right side
    20,529.23x = 327,973,403.61
  5. Step 5: Solve for x
    x = 327,973,403.61/20,529.23
  6. Step 6: Final answer
    x = 15,975.93

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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.