Home / 43,903.37-65,852.73-12,315.61

Finding the Fourth Proportional to 43,903.37, 65,852.73 and 12,315.61

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Solution

The fourth proportional to 43,903.37, 65,852.73 and 12,315.61 is: 18,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,903.37 : 65,852.73 = 12,315.61 : x
  2. Step 2: Convert to fraction form
    43,903.37/65,852.73 = 12,315.61/x
  3. Step 3: Cross multiply
    43,903.37x = 65,852.73 × 12,315.61
  4. Step 4: Simplify right side
    43,903.37x = 811,016,540.12
  5. Step 5: Solve for x
    x = 811,016,540.12/43,903.37
  6. Step 6: Final answer
    x = 18,472.76

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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.