Home / 26,770.78-36,942.68-15,440.74

Finding the Fourth Proportional to 26,770.78, 36,942.68 and 15,440.74

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Solution

The fourth proportional to 26,770.78, 36,942.68 and 15,440.74 is: 21,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,770.78 : 36,942.68 = 15,440.74 : x
  2. Step 2: Convert to fraction form
    26,770.78/36,942.68 = 15,440.74/x
  3. Step 3: Cross multiply
    26,770.78x = 36,942.68 × 15,440.74
  4. Step 4: Simplify right side
    26,770.78x = 570,422,316.78
  5. Step 5: Solve for x
    x = 570,422,316.78/26,770.78
  6. Step 6: Final answer
    x = 21,307.65

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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.