Home / 28,987.72-43,482.14-19,055.75

Finding the Fourth Proportional to 28,987.72, 43,482.14 and 19,055.75

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Solution

The fourth proportional to 28,987.72, 43,482.14 and 19,055.75 is: 28,583.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.72 : 43,482.14 = 19,055.75 : x
  2. Step 2: Convert to fraction form
    28,987.72/43,482.14 = 19,055.75/x
  3. Step 3: Cross multiply
    28,987.72x = 43,482.14 × 19,055.75
  4. Step 4: Simplify right side
    28,987.72x = 828,584,789.31
  5. Step 5: Solve for x
    x = 828,584,789.31/28,987.72
  6. Step 6: Final answer
    x = 28,583.99

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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.