Home / 28,886.42-43,331.18-8,111.54

Finding the Fourth Proportional to 28,886.42, 43,331.18 and 8,111.54

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Solution

The fourth proportional to 28,886.42, 43,331.18 and 8,111.54 is: 12,167.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.42 : 43,331.18 = 8,111.54 : x
  2. Step 2: Convert to fraction form
    28,886.42/43,331.18 = 8,111.54/x
  3. Step 3: Cross multiply
    28,886.42x = 43,331.18 × 8,111.54
  4. Step 4: Simplify right side
    28,886.42x = 351,482,599.82
  5. Step 5: Solve for x
    x = 351,482,599.82/28,886.42
  6. Step 6: Final answer
    x = 12,167.75

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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.