Home / 26,021.66-39,038.69-8,491.50

Finding the Fourth Proportional to 26,021.66, 39,038.69 and 8,491.50

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Solution

The fourth proportional to 26,021.66, 39,038.69 and 8,491.50 is: 12,739.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,021.66 : 39,038.69 = 8,491.50 : x
  2. Step 2: Convert to fraction form
    26,021.66/39,038.69 = 8,491.50/x
  3. Step 3: Cross multiply
    26,021.66x = 39,038.69 × 8,491.50
  4. Step 4: Simplify right side
    26,021.66x = 331,497,057.36
  5. Step 5: Solve for x
    x = 331,497,057.36/26,021.66
  6. Step 6: Final answer
    x = 12,739.28

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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.