Home / 28,181.64-38,881.83-16,243.38

Finding the Fourth Proportional to 28,181.64, 38,881.83 and 16,243.38

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Solution

The fourth proportional to 28,181.64, 38,881.83 and 16,243.38 is: 22,410.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.64 : 38,881.83 = 16,243.38 : x
  2. Step 2: Convert to fraction form
    28,181.64/38,881.83 = 16,243.38/x
  3. Step 3: Cross multiply
    28,181.64x = 38,881.83 × 16,243.38
  4. Step 4: Simplify right side
    28,181.64x = 631,572,339.79
  5. Step 5: Solve for x
    x = 631,572,339.79/28,181.64
  6. Step 6: Final answer
    x = 22,410.77

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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.