Home / 28,886.17-43,330.80-8,111.29

Finding the Fourth Proportional to 28,886.17, 43,330.80 and 8,111.29

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Solution

The fourth proportional to 28,886.17, 43,330.80 and 8,111.29 is: 12,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.17 : 43,330.80 = 8,111.29 : x
  2. Step 2: Convert to fraction form
    28,886.17/43,330.80 = 8,111.29/x
  3. Step 3: Cross multiply
    28,886.17x = 43,330.80 × 8,111.29
  4. Step 4: Simplify right side
    28,886.17x = 351,468,684.73
  5. Step 5: Solve for x
    x = 351,468,684.73/28,886.17
  6. Step 6: Final answer
    x = 12,167.37

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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.