Home / 26,129.81-39,200.60-9,489.80

Finding the Fourth Proportional to 26,129.81, 39,200.60 and 9,489.80

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Solution

The fourth proportional to 26,129.81, 39,200.60 and 9,489.80 is: 14,236.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,129.81 : 39,200.60 = 9,489.80 : x
  2. Step 2: Convert to fraction form
    26,129.81/39,200.60 = 9,489.80/x
  3. Step 3: Cross multiply
    26,129.81x = 39,200.60 × 9,489.80
  4. Step 4: Simplify right side
    26,129.81x = 372,005,681.60
  5. Step 5: Solve for x
    x = 372,005,681.60/26,129.81
  6. Step 6: Final answer
    x = 14,236.83

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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.