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Finding the Fourth Proportional to 27,023.60, 40,470.60 and 21,839.60

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Solution

The fourth proportional to 27,023.60, 40,470.60 and 21,839.60 is: 32,707.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,023.60 : 40,470.60 = 21,839.60 : x
  2. Step 2: Convert to fraction form
    27,023.60/40,470.60 = 21,839.60/x
  3. Step 3: Cross multiply
    27,023.60x = 40,470.60 × 21,839.60
  4. Step 4: Simplify right side
    27,023.60x = 883,861,715.76
  5. Step 5: Solve for x
    x = 883,861,715.76/27,023.60
  6. Step 6: Final answer
    x = 32,707.03

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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.