Home / 28,431.92-39,224.58-18,876.44

Finding the Fourth Proportional to 28,431.92, 39,224.58 and 18,876.44

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Solution

The fourth proportional to 28,431.92, 39,224.58 and 18,876.44 is: 26,041.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431.92 : 39,224.58 = 18,876.44 : x
  2. Step 2: Convert to fraction form
    28,431.92/39,224.58 = 18,876.44/x
  3. Step 3: Cross multiply
    28,431.92x = 39,224.58 × 18,876.44
  4. Step 4: Simplify right side
    28,431.92x = 740,420,430.90
  5. Step 5: Solve for x
    x = 740,420,430.90/28,431.92
  6. Step 6: Final answer
    x = 26,041.87

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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.