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Finding the Fourth Proportional to 37,228.40, 55,826.40 and 12,258.80

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Solution

The fourth proportional to 37,228.40, 55,826.40 and 12,258.80 is: 18,382.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,228.40 : 55,826.40 = 12,258.80 : x
  2. Step 2: Convert to fraction form
    37,228.40/55,826.40 = 12,258.80/x
  3. Step 3: Cross multiply
    37,228.40x = 55,826.40 × 12,258.80
  4. Step 4: Simplify right side
    37,228.40x = 684,364,672.32
  5. Step 5: Solve for x
    x = 684,364,672.32/37,228.40
  6. Step 6: Final answer
    x = 18,382.87

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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.