Home / 28,560.36-39,467.52-21,474.48

Finding the Fourth Proportional to 28,560.36, 39,467.52 and 21,474.48

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Solution

The fourth proportional to 28,560.36, 39,467.52 and 21,474.48 is: 29,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560.36 : 39,467.52 = 21,474.48 : x
  2. Step 2: Convert to fraction form
    28,560.36/39,467.52 = 21,474.48/x
  3. Step 3: Cross multiply
    28,560.36x = 39,467.52 × 21,474.48
  4. Step 4: Simplify right side
    28,560.36x = 847,544,468.89
  5. Step 5: Solve for x
    x = 847,544,468.89/28,560.36
  6. Step 6: Final answer
    x = 29,675.55

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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.