Home / 28,939.91-43,380.26-19,580.92

Finding the Fourth Proportional to 28,939.91, 43,380.26 and 19,580.92

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Solution

The fourth proportional to 28,939.91, 43,380.26 and 19,580.92 is: 29,351.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,939.91 : 43,380.26 = 19,580.92 : x
  2. Step 2: Convert to fraction form
    28,939.91/43,380.26 = 19,580.92/x
  3. Step 3: Cross multiply
    28,939.91x = 43,380.26 × 19,580.92
  4. Step 4: Simplify right side
    28,939.91x = 849,425,341.14
  5. Step 5: Solve for x
    x = 849,425,341.14/28,939.91
  6. Step 6: Final answer
    x = 29,351.34

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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.