Home / 26,795.20-36,934.76-21,120.74

Finding the Fourth Proportional to 26,795.20, 36,934.76 and 21,120.74

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Solution

The fourth proportional to 26,795.20, 36,934.76 and 21,120.74 is: 29,113.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,795.20 : 36,934.76 = 21,120.74 : x
  2. Step 2: Convert to fraction form
    26,795.20/36,934.76 = 21,120.74/x
  3. Step 3: Cross multiply
    26,795.20x = 36,934.76 × 21,120.74
  4. Step 4: Simplify right side
    26,795.20x = 780,089,357.32
  5. Step 5: Solve for x
    x = 780,089,357.32/26,795.20
  6. Step 6: Final answer
    x = 29,113.03

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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.