Home / 28,360.22-39,137.94-16,427.30

Finding the Fourth Proportional to 28,360.22, 39,137.94 and 16,427.30

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Solution

The fourth proportional to 28,360.22, 39,137.94 and 16,427.30 is: 22,670.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.22 : 39,137.94 = 16,427.30 : x
  2. Step 2: Convert to fraction form
    28,360.22/39,137.94 = 16,427.30/x
  3. Step 3: Cross multiply
    28,360.22x = 39,137.94 × 16,427.30
  4. Step 4: Simplify right side
    28,360.22x = 642,930,486.07
  5. Step 5: Solve for x
    x = 642,930,486.07/28,360.22
  6. Step 6: Final answer
    x = 22,670.16

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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.