Home / 28,963.48-39,970.20-16,388.23

Finding the Fourth Proportional to 28,963.48, 39,970.20 and 16,388.23

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Solution

The fourth proportional to 28,963.48, 39,970.20 and 16,388.23 is: 22,616.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,963.48 : 39,970.20 = 16,388.23 : x
  2. Step 2: Convert to fraction form
    28,963.48/39,970.20 = 16,388.23/x
  3. Step 3: Cross multiply
    28,963.48x = 39,970.20 × 16,388.23
  4. Step 4: Simplify right side
    28,963.48x = 655,040,630.90
  5. Step 5: Solve for x
    x = 655,040,630.90/28,963.48
  6. Step 6: Final answer
    x = 22,616.09

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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.