Home / 20,763.37-28,655.55-12,268.24

Finding the Fourth Proportional to 20,763.37, 28,655.55 and 12,268.24

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Solution

The fourth proportional to 20,763.37, 28,655.55 and 12,268.24 is: 16,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.37 : 28,655.55 = 12,268.24 : x
  2. Step 2: Convert to fraction form
    20,763.37/28,655.55 = 12,268.24/x
  3. Step 3: Cross multiply
    20,763.37x = 28,655.55 × 12,268.24
  4. Step 4: Simplify right side
    20,763.37x = 351,553,093.09
  5. Step 5: Solve for x
    x = 351,553,093.09/20,763.37
  6. Step 6: Final answer
    x = 16,931.41

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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.