Home / 28,964.75-39,967.97-16,218.63

Finding the Fourth Proportional to 28,964.75, 39,967.97 and 16,218.63

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Solution

The fourth proportional to 28,964.75, 39,967.97 and 16,218.63 is: 22,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.75 : 39,967.97 = 16,218.63 : x
  2. Step 2: Convert to fraction form
    28,964.75/39,967.97 = 16,218.63/x
  3. Step 3: Cross multiply
    28,964.75x = 39,967.97 × 16,218.63
  4. Step 4: Simplify right side
    28,964.75x = 648,225,636.19
  5. Step 5: Solve for x
    x = 648,225,636.19/28,964.75
  6. Step 6: Final answer
    x = 22,379.82

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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.