Home / 28,579.92-39,446.85-19,020.21

Finding the Fourth Proportional to 28,579.92, 39,446.85 and 19,020.21

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Solution

The fourth proportional to 28,579.92, 39,446.85 and 19,020.21 is: 26,252.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.92 : 39,446.85 = 19,020.21 : x
  2. Step 2: Convert to fraction form
    28,579.92/39,446.85 = 19,020.21/x
  3. Step 3: Cross multiply
    28,579.92x = 39,446.85 × 19,020.21
  4. Step 4: Simplify right side
    28,579.92x = 750,287,370.84
  5. Step 5: Solve for x
    x = 750,287,370.84/28,579.92
  6. Step 6: Final answer
    x = 26,252.26

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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.