Home / 26,818.52-40,228.86-12,771.32

Finding the Fourth Proportional to 26,818.52, 40,228.86 and 12,771.32

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Solution

The fourth proportional to 26,818.52, 40,228.86 and 12,771.32 is: 19,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,818.52 : 40,228.86 = 12,771.32 : x
  2. Step 2: Convert to fraction form
    26,818.52/40,228.86 = 12,771.32/x
  3. Step 3: Cross multiply
    26,818.52x = 40,228.86 × 12,771.32
  4. Step 4: Simplify right side
    26,818.52x = 513,775,644.30
  5. Step 5: Solve for x
    x = 513,775,644.30/26,818.52
  6. Step 6: Final answer
    x = 19,157.49

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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.