Home / 38,811.20-58,216.80-15,425.60

Finding the Fourth Proportional to 38,811.20, 58,216.80 and 15,425.60

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Solution

The fourth proportional to 38,811.20, 58,216.80 and 15,425.60 is: 23,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,811.20 : 58,216.80 = 15,425.60 : x
  2. Step 2: Convert to fraction form
    38,811.20/58,216.80 = 15,425.60/x
  3. Step 3: Cross multiply
    38,811.20x = 58,216.80 × 15,425.60
  4. Step 4: Simplify right side
    38,811.20x = 898,029,070.08
  5. Step 5: Solve for x
    x = 898,029,070.08/38,811.20
  6. Step 6: Final answer
    x = 23,138.40

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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.