Home / 28,013.24-38,655.52-16,680.48

Finding the Fourth Proportional to 28,013.24, 38,655.52 and 16,680.48

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Solution

The fourth proportional to 28,013.24, 38,655.52 and 16,680.48 is: 23,017.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,013.24 : 38,655.52 = 16,680.48 : x
  2. Step 2: Convert to fraction form
    28,013.24/38,655.52 = 16,680.48/x
  3. Step 3: Cross multiply
    28,013.24x = 38,655.52 × 16,680.48
  4. Step 4: Simplify right side
    28,013.24x = 644,792,544.85
  5. Step 5: Solve for x
    x = 644,792,544.85/28,013.24
  6. Step 6: Final answer
    x = 23,017.43

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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.