Home / 26,439.81-39,666.39-12,201.42

Finding the Fourth Proportional to 26,439.81, 39,666.39 and 12,201.42

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Solution

The fourth proportional to 26,439.81, 39,666.39 and 12,201.42 is: 18,305.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,439.81 : 39,666.39 = 12,201.42 : x
  2. Step 2: Convert to fraction form
    26,439.81/39,666.39 = 12,201.42/x
  3. Step 3: Cross multiply
    26,439.81x = 39,666.39 × 12,201.42
  4. Step 4: Simplify right side
    26,439.81x = 483,986,284.27
  5. Step 5: Solve for x
    x = 483,986,284.27/26,439.81
  6. Step 6: Final answer
    x = 18,305.21

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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.