Home / 28,241.38-38,977.77-15,670.18

Finding the Fourth Proportional to 28,241.38, 38,977.77 and 15,670.18

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Solution

The fourth proportional to 28,241.38, 38,977.77 and 15,670.18 is: 21,627.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,241.38 : 38,977.77 = 15,670.18 : x
  2. Step 2: Convert to fraction form
    28,241.38/38,977.77 = 15,670.18/x
  3. Step 3: Cross multiply
    28,241.38x = 38,977.77 × 15,670.18
  4. Step 4: Simplify right side
    28,241.38x = 610,788,671.90
  5. Step 5: Solve for x
    x = 610,788,671.90/28,241.38
  6. Step 6: Final answer
    x = 21,627.44

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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.