Home / 26,349.10-39,519.50-12,318.89

Finding the Fourth Proportional to 26,349.10, 39,519.50 and 12,318.89

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Solution

The fourth proportional to 26,349.10, 39,519.50 and 12,318.89 is: 18,476.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,349.10 : 39,519.50 = 12,318.89 : x
  2. Step 2: Convert to fraction form
    26,349.10/39,519.50 = 12,318.89/x
  3. Step 3: Cross multiply
    26,349.10x = 39,519.50 × 12,318.89
  4. Step 4: Simplify right side
    26,349.10x = 486,836,114.16
  5. Step 5: Solve for x
    x = 486,836,114.16/26,349.10
  6. Step 6: Final answer
    x = 18,476.39

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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.