Home / 28,963.73-39,970.55-16,388.48

Finding the Fourth Proportional to 28,963.73, 39,970.55 and 16,388.48

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Solution

The fourth proportional to 28,963.73, 39,970.55 and 16,388.48 is: 22,616.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,963.73 : 39,970.55 = 16,388.48 : x
  2. Step 2: Convert to fraction form
    28,963.73/39,970.55 = 16,388.48/x
  3. Step 3: Cross multiply
    28,963.73x = 39,970.55 × 16,388.48
  4. Step 4: Simplify right side
    28,963.73x = 655,056,277.47
  5. Step 5: Solve for x
    x = 655,056,277.47/28,963.73
  6. Step 6: Final answer
    x = 22,616.44

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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.