Home / 28,255.23-42,383.12-8,534.57

Finding the Fourth Proportional to 28,255.23, 42,383.12 and 8,534.57

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Solution

The fourth proportional to 28,255.23, 42,383.12 and 8,534.57 is: 12,801.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.23 : 42,383.12 = 8,534.57 : x
  2. Step 2: Convert to fraction form
    28,255.23/42,383.12 = 8,534.57/x
  3. Step 3: Cross multiply
    28,255.23x = 42,383.12 × 8,534.57
  4. Step 4: Simplify right side
    28,255.23x = 361,721,449.87
  5. Step 5: Solve for x
    x = 361,721,449.87/28,255.23
  6. Step 6: Final answer
    x = 12,801.93

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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.