Home / 36,957.12-55,458.72-21,405.12

Finding the Fourth Proportional to 36,957.12, 55,458.72 and 21,405.12

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Solution

The fourth proportional to 36,957.12, 55,458.72 and 21,405.12 is: 32,121.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,957.12 : 55,458.72 = 21,405.12 : x
  2. Step 2: Convert to fraction form
    36,957.12/55,458.72 = 21,405.12/x
  3. Step 3: Cross multiply
    36,957.12x = 55,458.72 × 21,405.12
  4. Step 4: Simplify right side
    36,957.12x = 1,187,100,556.65
  5. Step 5: Solve for x
    x = 1,187,100,556.65/36,957.12
  6. Step 6: Final answer
    x = 32,121.02

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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.