Home / 43,872.40-65,804.52-12,285.32

Finding the Fourth Proportional to 43,872.40, 65,804.52 and 12,285.32

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Solution

The fourth proportional to 43,872.40, 65,804.52 and 12,285.32 is: 18,426.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,872.40 : 65,804.52 = 12,285.32 : x
  2. Step 2: Convert to fraction form
    43,872.40/65,804.52 = 12,285.32/x
  3. Step 3: Cross multiply
    43,872.40x = 65,804.52 × 12,285.32
  4. Step 4: Simplify right side
    43,872.40x = 808,429,585.65
  5. Step 5: Solve for x
    x = 808,429,585.65/43,872.40
  6. Step 6: Final answer
    x = 18,426.84

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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.