Home / 26,783.64-36,922.28-20,399.43

Finding the Fourth Proportional to 26,783.64, 36,922.28 and 20,399.43

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Solution

The fourth proportional to 26,783.64, 36,922.28 and 20,399.43 is: 28,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,783.64 : 36,922.28 = 20,399.43 : x
  2. Step 2: Convert to fraction form
    26,783.64/36,922.28 = 20,399.43/x
  3. Step 3: Cross multiply
    26,783.64x = 36,922.28 × 20,399.43
  4. Step 4: Simplify right side
    26,783.64x = 753,193,364.30
  5. Step 5: Solve for x
    x = 753,193,364.30/26,783.64
  6. Step 6: Final answer
    x = 28,121.40

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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.