Home / 19,128.32-28,737.59-11,251.02

Finding the Fourth Proportional to 19,128.32, 28,737.59 and 11,251.02

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Solution

The fourth proportional to 19,128.32, 28,737.59 and 11,251.02 is: 16,903.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.32 : 28,737.59 = 11,251.02 : x
  2. Step 2: Convert to fraction form
    19,128.32/28,737.59 = 11,251.02/x
  3. Step 3: Cross multiply
    19,128.32x = 28,737.59 × 11,251.02
  4. Step 4: Simplify right side
    19,128.32x = 323,327,143.59
  5. Step 5: Solve for x
    x = 323,327,143.59/19,128.32
  6. Step 6: Final answer
    x = 16,903.06

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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.