Home / 28,804.64-39,757.80-18,758.16

Finding the Fourth Proportional to 28,804.64, 39,757.80 and 18,758.16

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Solution

The fourth proportional to 28,804.64, 39,757.80 and 18,758.16 is: 25,891.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,804.64 : 39,757.80 = 18,758.16 : x
  2. Step 2: Convert to fraction form
    28,804.64/39,757.80 = 18,758.16/x
  3. Step 3: Cross multiply
    28,804.64x = 39,757.80 × 18,758.16
  4. Step 4: Simplify right side
    28,804.64x = 745,783,173.65
  5. Step 5: Solve for x
    x = 745,783,173.65/28,804.64
  6. Step 6: Final answer
    x = 25,891.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.