Home / 20,231.81-30,266.39-17,487.93

Finding the Fourth Proportional to 20,231.81, 30,266.39 and 17,487.93

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Solution

The fourth proportional to 20,231.81, 30,266.39 and 17,487.93 is: 26,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.81 : 30,266.39 = 17,487.93 : x
  2. Step 2: Convert to fraction form
    20,231.81/30,266.39 = 17,487.93/x
  3. Step 3: Cross multiply
    20,231.81x = 30,266.39 × 17,487.93
  4. Step 4: Simplify right side
    20,231.81x = 529,296,422.23
  5. Step 5: Solve for x
    x = 529,296,422.23/20,231.81
  6. Step 6: Final answer
    x = 26,161.60

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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.