Home / 19,129.77-28,737.86-11,343.69

Finding the Fourth Proportional to 19,129.77, 28,737.86 and 11,343.69

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Solution

The fourth proportional to 19,129.77, 28,737.86 and 11,343.69 is: 17,041.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.77 : 28,737.86 = 11,343.69 : x
  2. Step 2: Convert to fraction form
    19,129.77/28,737.86 = 11,343.69/x
  3. Step 3: Cross multiply
    19,129.77x = 28,737.86 × 11,343.69
  4. Step 4: Simplify right side
    19,129.77x = 325,993,318.38
  5. Step 5: Solve for x
    x = 325,993,318.38/19,129.77
  6. Step 6: Final answer
    x = 17,041.15

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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.