Home / 28,216.36-38,928.54-16,282.72

Finding the Fourth Proportional to 28,216.36, 38,928.54 and 16,282.72

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Solution

The fourth proportional to 28,216.36, 38,928.54 and 16,282.72 is: 22,464.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,216.36 : 38,928.54 = 16,282.72 : x
  2. Step 2: Convert to fraction form
    28,216.36/38,928.54 = 16,282.72/x
  3. Step 3: Cross multiply
    28,216.36x = 38,928.54 × 16,282.72
  4. Step 4: Simplify right side
    28,216.36x = 633,862,516.83
  5. Step 5: Solve for x
    x = 633,862,516.83/28,216.36
  6. Step 6: Final answer
    x = 22,464.36

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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.