Home / 26,485.44-39,667.64-12,644.16

Finding the Fourth Proportional to 26,485.44, 39,667.64 and 12,644.16

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Solution

The fourth proportional to 26,485.44, 39,667.64 and 12,644.16 is: 18,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,485.44 : 39,667.64 = 12,644.16 : x
  2. Step 2: Convert to fraction form
    26,485.44/39,667.64 = 12,644.16/x
  3. Step 3: Cross multiply
    26,485.44x = 39,667.64 × 12,644.16
  4. Step 4: Simplify right side
    26,485.44x = 501,563,986.98
  5. Step 5: Solve for x
    x = 501,563,986.98/26,485.44
  6. Step 6: Final answer
    x = 18,937.35

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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.