Home / 43,818.36-65,738.63-12,228.42

Finding the Fourth Proportional to 43,818.36, 65,738.63 and 12,228.42

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Solution

The fourth proportional to 43,818.36, 65,738.63 and 12,228.42 is: 18,345.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,818.36 : 65,738.63 = 12,228.42 : x
  2. Step 2: Convert to fraction form
    43,818.36/65,738.63 = 12,228.42/x
  3. Step 3: Cross multiply
    43,818.36x = 65,738.63 × 12,228.42
  4. Step 4: Simplify right side
    43,818.36x = 803,879,382.95
  5. Step 5: Solve for x
    x = 803,879,382.95/43,818.36
  6. Step 6: Final answer
    x = 18,345.72

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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.