Home / 28,181.14-38,881.15-16,242.87

Finding the Fourth Proportional to 28,181.14, 38,881.15 and 16,242.87

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Solution

The fourth proportional to 28,181.14, 38,881.15 and 16,242.87 is: 22,410.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.14 : 38,881.15 = 16,242.87 : x
  2. Step 2: Convert to fraction form
    28,181.14/38,881.15 = 16,242.87/x
  3. Step 3: Cross multiply
    28,181.14x = 38,881.15 × 16,242.87
  4. Step 4: Simplify right side
    28,181.14x = 631,541,464.90
  5. Step 5: Solve for x
    x = 631,541,464.90/28,181.14
  6. Step 6: Final answer
    x = 22,410.08

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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.