Home / 28,181.38-38,881.50-16,243.10

Finding the Fourth Proportional to 28,181.38, 38,881.50 and 16,243.10

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Solution

The fourth proportional to 28,181.38, 38,881.50 and 16,243.10 is: 22,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.38 : 38,881.50 = 16,243.10 : x
  2. Step 2: Convert to fraction form
    28,181.38/38,881.50 = 16,243.10/x
  3. Step 3: Cross multiply
    28,181.38x = 38,881.50 × 16,243.10
  4. Step 4: Simplify right side
    28,181.38x = 631,555,898.24
  5. Step 5: Solve for x
    x = 631,555,898.24/28,181.38
  6. Step 6: Final answer
    x = 22,410.40

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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.