Home / 28,660.80-39,546.52-16,721.16

Finding the Fourth Proportional to 28,660.80, 39,546.52 and 16,721.16

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Solution

The fourth proportional to 28,660.80, 39,546.52 and 16,721.16 is: 23,072.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.80 : 39,546.52 = 16,721.16 : x
  2. Step 2: Convert to fraction form
    28,660.80/39,546.52 = 16,721.16/x
  3. Step 3: Cross multiply
    28,660.80x = 39,546.52 × 16,721.16
  4. Step 4: Simplify right side
    28,660.80x = 661,263,688.36
  5. Step 5: Solve for x
    x = 661,263,688.36/28,660.80
  6. Step 6: Final answer
    x = 23,072.06

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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.