Home / 20,239.02-30,295.71-18,516.60

Finding the Fourth Proportional to 20,239.02, 30,295.71 and 18,516.60

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Solution

The fourth proportional to 20,239.02, 30,295.71 and 18,516.60 is: 27,717.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.02 : 30,295.71 = 18,516.60 : x
  2. Step 2: Convert to fraction form
    20,239.02/30,295.71 = 18,516.60/x
  3. Step 3: Cross multiply
    20,239.02x = 30,295.71 × 18,516.60
  4. Step 4: Simplify right side
    20,239.02x = 560,973,543.79
  5. Step 5: Solve for x
    x = 560,973,543.79/20,239.02
  6. Step 6: Final answer
    x = 27,717.43

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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.