Home / 28,881.31-43,323.51-9,161.44

Finding the Fourth Proportional to 28,881.31, 43,323.51 and 9,161.44

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Solution

The fourth proportional to 28,881.31, 43,323.51 and 9,161.44 is: 13,742.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,881.31 : 43,323.51 = 9,161.44 : x
  2. Step 2: Convert to fraction form
    28,881.31/43,323.51 = 9,161.44/x
  3. Step 3: Cross multiply
    28,881.31x = 43,323.51 × 9,161.44
  4. Step 4: Simplify right side
    28,881.31x = 396,905,737.45
  5. Step 5: Solve for x
    x = 396,905,737.45/28,881.31
  6. Step 6: Final answer
    x = 13,742.65

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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.