Home / 20,950.02-28,911.33-11,518.92

Finding the Fourth Proportional to 20,950.02, 28,911.33 and 11,518.92

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Solution

The fourth proportional to 20,950.02, 28,911.33 and 11,518.92 is: 15,896.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,950.02 : 28,911.33 = 11,518.92 : x
  2. Step 2: Convert to fraction form
    20,950.02/28,911.33 = 11,518.92/x
  3. Step 3: Cross multiply
    20,950.02x = 28,911.33 × 11,518.92
  4. Step 4: Simplify right side
    20,950.02x = 333,027,297.36
  5. Step 5: Solve for x
    x = 333,027,297.36/20,950.02
  6. Step 6: Final answer
    x = 15,896.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.