Home / 20,964.49-28,907.38-16,173.55

Finding the Fourth Proportional to 20,964.49, 28,907.38 and 16,173.55

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Solution

The fourth proportional to 20,964.49, 28,907.38 and 16,173.55 is: 22,301.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,964.49 : 28,907.38 = 16,173.55 : x
  2. Step 2: Convert to fraction form
    20,964.49/28,907.38 = 16,173.55/x
  3. Step 3: Cross multiply
    20,964.49x = 28,907.38 × 16,173.55
  4. Step 4: Simplify right side
    20,964.49x = 467,534,955.80
  5. Step 5: Solve for x
    x = 467,534,955.80/20,964.49
  6. Step 6: Final answer
    x = 22,301.28

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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.