Home / 19,081.34-28,639.47-9,728.07

Finding the Fourth Proportional to 19,081.34, 28,639.47 and 9,728.07

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Solution

The fourth proportional to 19,081.34, 28,639.47 and 9,728.07 is: 14,601.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,081.34 : 28,639.47 = 9,728.07 : x
  2. Step 2: Convert to fraction form
    19,081.34/28,639.47 = 9,728.07/x
  3. Step 3: Cross multiply
    19,081.34x = 28,639.47 × 9,728.07
  4. Step 4: Simplify right side
    19,081.34x = 278,606,698.01
  5. Step 5: Solve for x
    x = 278,606,698.01/19,081.34
  6. Step 6: Final answer
    x = 14,601.00

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.