Home / 28,967.58-39,971.96-16,218.99

Finding the Fourth Proportional to 28,967.58, 39,971.96 and 16,218.99

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Solution

The fourth proportional to 28,967.58, 39,971.96 and 16,218.99 is: 22,380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,967.58 : 39,971.96 = 16,218.99 : x
  2. Step 2: Convert to fraction form
    28,967.58/39,971.96 = 16,218.99/x
  3. Step 3: Cross multiply
    28,967.58x = 39,971.96 × 16,218.99
  4. Step 4: Simplify right side
    28,967.58x = 648,304,738.43
  5. Step 5: Solve for x
    x = 648,304,738.43/28,967.58
  6. Step 6: Final answer
    x = 22,380.36

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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.