Home / 28,354.12-39,126.14-16,418.27

Finding the Fourth Proportional to 28,354.12, 39,126.14 and 16,418.27

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Solution

The fourth proportional to 28,354.12, 39,126.14 and 16,418.27 is: 22,655.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,354.12 : 39,126.14 = 16,418.27 : x
  2. Step 2: Convert to fraction form
    28,354.12/39,126.14 = 16,418.27/x
  3. Step 3: Cross multiply
    28,354.12x = 39,126.14 × 16,418.27
  4. Step 4: Simplify right side
    28,354.12x = 642,383,530.58
  5. Step 5: Solve for x
    x = 642,383,530.58/28,354.12
  6. Step 6: Final answer
    x = 22,655.74

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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.