Home / 28,020.12-38,666.37-16,083.18

Finding the Fourth Proportional to 28,020.12, 38,666.37 and 16,083.18

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Solution

The fourth proportional to 28,020.12, 38,666.37 and 16,083.18 is: 22,193.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,020.12 : 38,666.37 = 16,083.18 : x
  2. Step 2: Convert to fraction form
    28,020.12/38,666.37 = 16,083.18/x
  3. Step 3: Cross multiply
    28,020.12x = 38,666.37 × 16,083.18
  4. Step 4: Simplify right side
    28,020.12x = 621,878,188.66
  5. Step 5: Solve for x
    x = 621,878,188.66/28,020.12
  6. Step 6: Final answer
    x = 22,193.99

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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.