Home / 26,429.80-39,644.70-10,858.60

Finding the Fourth Proportional to 26,429.80, 39,644.70 and 10,858.60

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Solution

The fourth proportional to 26,429.80, 39,644.70 and 10,858.60 is: 16,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,429.80 : 39,644.70 = 10,858.60 : x
  2. Step 2: Convert to fraction form
    26,429.80/39,644.70 = 10,858.60/x
  3. Step 3: Cross multiply
    26,429.80x = 39,644.70 × 10,858.60
  4. Step 4: Simplify right side
    26,429.80x = 430,485,939.42
  5. Step 5: Solve for x
    x = 430,485,939.42/26,429.80
  6. Step 6: Final answer
    x = 16,287.90

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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.