Home / 26,576.09-39,812.80-20,289.68

Finding the Fourth Proportional to 26,576.09, 39,812.80 and 20,289.68

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Solution

The fourth proportional to 26,576.09, 39,812.80 and 20,289.68 is: 30,395.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,576.09 : 39,812.80 = 20,289.68 : x
  2. Step 2: Convert to fraction form
    26,576.09/39,812.80 = 20,289.68/x
  3. Step 3: Cross multiply
    26,576.09x = 39,812.80 × 20,289.68
  4. Step 4: Simplify right side
    26,576.09x = 807,788,971.90
  5. Step 5: Solve for x
    x = 807,788,971.90/26,576.09
  6. Step 6: Final answer
    x = 30,395.33

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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.