Home / 26,310.96-39,438.87-12,259.40

Finding the Fourth Proportional to 26,310.96, 39,438.87 and 12,259.40

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Solution

The fourth proportional to 26,310.96, 39,438.87 and 12,259.40 is: 18,376.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,310.96 : 39,438.87 = 12,259.40 : x
  2. Step 2: Convert to fraction form
    26,310.96/39,438.87 = 12,259.40/x
  3. Step 3: Cross multiply
    26,310.96x = 39,438.87 × 12,259.40
  4. Step 4: Simplify right side
    26,310.96x = 483,496,736.65
  5. Step 5: Solve for x
    x = 483,496,736.65/26,310.96
  6. Step 6: Final answer
    x = 18,376.25

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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.