Home / 26,200.81-39,289.17-8,428.19

Finding the Fourth Proportional to 26,200.81, 39,289.17 and 8,428.19

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Solution

The fourth proportional to 26,200.81, 39,289.17 and 8,428.19 is: 12,638.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,200.81 : 39,289.17 = 8,428.19 : x
  2. Step 2: Convert to fraction form
    26,200.81/39,289.17 = 8,428.19/x
  3. Step 3: Cross multiply
    26,200.81x = 39,289.17 × 8,428.19
  4. Step 4: Simplify right side
    26,200.81x = 331,136,589.70
  5. Step 5: Solve for x
    x = 331,136,589.70/26,200.81
  6. Step 6: Final answer
    x = 12,638.41

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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.