Home / 28,190.00-38,885.10-18,629.97

Finding the Fourth Proportional to 28,190.00, 38,885.10 and 18,629.97

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Solution

The fourth proportional to 28,190.00, 38,885.10 and 18,629.97 is: 25,698.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190.00 : 38,885.10 = 18,629.97 : x
  2. Step 2: Convert to fraction form
    28,190.00/38,885.10 = 18,629.97/x
  3. Step 3: Cross multiply
    28,190.00x = 38,885.10 × 18,629.97
  4. Step 4: Simplify right side
    28,190.00x = 724,428,246.45
  5. Step 5: Solve for x
    x = 724,428,246.45/28,190.00
  6. Step 6: Final answer
    x = 25,698.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.