Home / 20,804.77-31,208.47-8,794.68

Finding the Fourth Proportional to 20,804.77, 31,208.47 and 8,794.68

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Solution

The fourth proportional to 20,804.77, 31,208.47 and 8,794.68 is: 13,192.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804.77 : 31,208.47 = 8,794.68 : x
  2. Step 2: Convert to fraction form
    20,804.77/31,208.47 = 8,794.68/x
  3. Step 3: Cross multiply
    20,804.77x = 31,208.47 × 8,794.68
  4. Step 4: Simplify right side
    20,804.77x = 274,468,462.97
  5. Step 5: Solve for x
    x = 274,468,462.97/20,804.77
  6. Step 6: Final answer
    x = 13,192.58

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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.