Home / 19,320.82-28,981.24-10,550.94

Finding the Fourth Proportional to 19,320.82, 28,981.24 and 10,550.94

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Solution

The fourth proportional to 19,320.82, 28,981.24 and 10,550.94 is: 15,826.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.82 : 28,981.24 = 10,550.94 : x
  2. Step 2: Convert to fraction form
    19,320.82/28,981.24 = 10,550.94/x
  3. Step 3: Cross multiply
    19,320.82x = 28,981.24 × 10,550.94
  4. Step 4: Simplify right side
    19,320.82x = 305,779,324.37
  5. Step 5: Solve for x
    x = 305,779,324.37/19,320.82
  6. Step 6: Final answer
    x = 15,826.42

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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.