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Finding the Fourth Proportional to 27,423.60, 38,470.80 and 27,423.60

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Solution

The fourth proportional to 27,423.60, 38,470.80 and 27,423.60 is: 38,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,423.60 : 38,470.80 = 27,423.60 : x
  2. Step 2: Convert to fraction form
    27,423.60/38,470.80 = 27,423.60/x
  3. Step 3: Cross multiply
    27,423.60x = 38,470.80 × 27,423.60
  4. Step 4: Simplify right side
    27,423.60x = 1,055,007,830.88
  5. Step 5: Solve for x
    x = 1,055,007,830.88/27,423.60
  6. Step 6: Final answer
    x = 38,470.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.