Home / 28,131.50-38,826.33-16,953.50

Finding the Fourth Proportional to 28,131.50, 38,826.33 and 16,953.50

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Solution

The fourth proportional to 28,131.50, 38,826.33 and 16,953.50 is: 23,398.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,131.50 : 38,826.33 = 16,953.50 : x
  2. Step 2: Convert to fraction form
    28,131.50/38,826.33 = 16,953.50/x
  3. Step 3: Cross multiply
    28,131.50x = 38,826.33 × 16,953.50
  4. Step 4: Simplify right side
    28,131.50x = 658,242,185.66
  5. Step 5: Solve for x
    x = 658,242,185.66/28,131.50
  6. Step 6: Final answer
    x = 23,398.76

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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.