Home / 28,864.80-43,297.20-9,145.35

Finding the Fourth Proportional to 28,864.80, 43,297.20 and 9,145.35

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Solution

The fourth proportional to 28,864.80, 43,297.20 and 9,145.35 is: 13,718.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864.80 : 43,297.20 = 9,145.35 : x
  2. Step 2: Convert to fraction form
    28,864.80/43,297.20 = 9,145.35/x
  3. Step 3: Cross multiply
    28,864.80x = 43,297.20 × 9,145.35
  4. Step 4: Simplify right side
    28,864.80x = 395,968,048.02
  5. Step 5: Solve for x
    x = 395,968,048.02/28,864.80
  6. Step 6: Final answer
    x = 13,718.03

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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.