Home / 28,297.77-39,049.04-15,550.68

Finding the Fourth Proportional to 28,297.77, 39,049.04 and 15,550.68

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Solution

The fourth proportional to 28,297.77, 39,049.04 and 15,550.68 is: 21,458.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,297.77 : 39,049.04 = 15,550.68 : x
  2. Step 2: Convert to fraction form
    28,297.77/39,049.04 = 15,550.68/x
  3. Step 3: Cross multiply
    28,297.77x = 39,049.04 × 15,550.68
  4. Step 4: Simplify right side
    28,297.77x = 607,239,044.07
  5. Step 5: Solve for x
    x = 607,239,044.07/28,297.77
  6. Step 6: Final answer
    x = 21,458.90

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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.