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Finding the Fourth Proportional to 27,300.66, 40,938.24 and 18,984.80

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Solution

The fourth proportional to 27,300.66, 40,938.24 and 18,984.80 is: 28,468.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,300.66 : 40,938.24 = 18,984.80 : x
  2. Step 2: Convert to fraction form
    27,300.66/40,938.24 = 18,984.80/x
  3. Step 3: Cross multiply
    27,300.66x = 40,938.24 × 18,984.80
  4. Step 4: Simplify right side
    27,300.66x = 777,204,298.75
  5. Step 5: Solve for x
    x = 777,204,298.75/27,300.66
  6. Step 6: Final answer
    x = 28,468.33

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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.