Home / 29,270.88-40,383.60-20,316

Finding the Fourth Proportional to 29,270.88, 40,383.60 and 20,316

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Solution

The fourth proportional to 29,270.88, 40,383.60 and 20,316 is: 28,028.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,270.88 : 40,383.60 = 20,316 : x
  2. Step 2: Convert to fraction form
    29,270.88/40,383.60 = 20,316/x
  3. Step 3: Cross multiply
    29,270.88x = 40,383.60 × 20,316
  4. Step 4: Simplify right side
    29,270.88x = 820,433,217.60
  5. Step 5: Solve for x
    x = 820,433,217.60/29,270.88
  6. Step 6: Final answer
    x = 28,028.99

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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.