Home / 26,472.80-39,644.40-12,605.60

Finding the Fourth Proportional to 26,472.80, 39,644.40 and 12,605.60

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Solution

The fourth proportional to 26,472.80, 39,644.40 and 12,605.60 is: 18,877.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,472.80 : 39,644.40 = 12,605.60 : x
  2. Step 2: Convert to fraction form
    26,472.80/39,644.40 = 12,605.60/x
  3. Step 3: Cross multiply
    26,472.80x = 39,644.40 × 12,605.60
  4. Step 4: Simplify right side
    26,472.80x = 499,741,448.64
  5. Step 5: Solve for x
    x = 499,741,448.64/26,472.80
  6. Step 6: Final answer
    x = 18,877.54

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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.