Home / 26,485.68-39,668.04-12,644.40

Finding the Fourth Proportional to 26,485.68, 39,668.04 and 12,644.40

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Solution

The fourth proportional to 26,485.68, 39,668.04 and 12,644.40 is: 18,937.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,485.68 : 39,668.04 = 12,644.40 : x
  2. Step 2: Convert to fraction form
    26,485.68/39,668.04 = 12,644.40/x
  3. Step 3: Cross multiply
    26,485.68x = 39,668.04 × 12,644.40
  4. Step 4: Simplify right side
    26,485.68x = 501,578,564.98
  5. Step 5: Solve for x
    x = 501,578,564.98/26,485.68
  6. Step 6: Final answer
    x = 18,937.73

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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.