Home / 19,331.03-28,944.59-12,272.83

Finding the Fourth Proportional to 19,331.03, 28,944.59 and 12,272.83

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Solution

The fourth proportional to 19,331.03, 28,944.59 and 12,272.83 is: 18,376.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331.03 : 28,944.59 = 12,272.83 : x
  2. Step 2: Convert to fraction form
    19,331.03/28,944.59 = 12,272.83/x
  3. Step 3: Cross multiply
    19,331.03x = 28,944.59 × 12,272.83
  4. Step 4: Simplify right side
    19,331.03x = 355,231,898.76
  5. Step 5: Solve for x
    x = 355,231,898.76/19,331.03
  6. Step 6: Final answer
    x = 18,376.25

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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.