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Finding the Fourth Proportional to 38,573.60, 57,863.60 and 12,277.60

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Solution

The fourth proportional to 38,573.60, 57,863.60 and 12,277.60 is: 18,417.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,573.60 : 57,863.60 = 12,277.60 : x
  2. Step 2: Convert to fraction form
    38,573.60/57,863.60 = 12,277.60/x
  3. Step 3: Cross multiply
    38,573.60x = 57,863.60 × 12,277.60
  4. Step 4: Simplify right side
    38,573.60x = 710,426,135.36
  5. Step 5: Solve for x
    x = 710,426,135.36/38,573.60
  6. Step 6: Final answer
    x = 18,417.42

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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.