Home / 20,944.07-28,907.38-12,884.66

Finding the Fourth Proportional to 20,944.07, 28,907.38 and 12,884.66

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Solution

The fourth proportional to 20,944.07, 28,907.38 and 12,884.66 is: 17,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.07 : 28,907.38 = 12,884.66 : x
  2. Step 2: Convert to fraction form
    20,944.07/28,907.38 = 12,884.66/x
  3. Step 3: Cross multiply
    20,944.07x = 28,907.38 × 12,884.66
  4. Step 4: Simplify right side
    20,944.07x = 372,461,762.79
  5. Step 5: Solve for x
    x = 372,461,762.79/20,944.07
  6. Step 6: Final answer
    x = 17,783.64

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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.