Home / 26,408.78-39,536.58-20,547.62

Finding the Fourth Proportional to 26,408.78, 39,536.58 and 20,547.62

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Solution

The fourth proportional to 26,408.78, 39,536.58 and 20,547.62 is: 30,761.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,408.78 : 39,536.58 = 20,547.62 : x
  2. Step 2: Convert to fraction form
    26,408.78/39,536.58 = 20,547.62/x
  3. Step 3: Cross multiply
    26,408.78x = 39,536.58 × 20,547.62
  4. Step 4: Simplify right side
    26,408.78x = 812,382,621.94
  5. Step 5: Solve for x
    x = 812,382,621.94/26,408.78
  6. Step 6: Final answer
    x = 30,761.84

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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.