Home / 38,921.45-58,382.21-12,628.24

Finding the Fourth Proportional to 38,921.45, 58,382.21 and 12,628.24

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Solution

The fourth proportional to 38,921.45, 58,382.21 and 12,628.24 is: 18,942.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,921.45 : 58,382.21 = 12,628.24 : x
  2. Step 2: Convert to fraction form
    38,921.45/58,382.21 = 12,628.24/x
  3. Step 3: Cross multiply
    38,921.45x = 58,382.21 × 12,628.24
  4. Step 4: Simplify right side
    38,921.45x = 737,264,445.23
  5. Step 5: Solve for x
    x = 737,264,445.23/38,921.45
  6. Step 6: Final answer
    x = 18,942.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.