Home / 28,961.68-43,427.94-14,148.40

Finding the Fourth Proportional to 28,961.68, 43,427.94 and 14,148.40

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Solution

The fourth proportional to 28,961.68, 43,427.94 and 14,148.40 is: 21,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,961.68 : 43,427.94 = 14,148.40 : x
  2. Step 2: Convert to fraction form
    28,961.68/43,427.94 = 14,148.40/x
  3. Step 3: Cross multiply
    28,961.68x = 43,427.94 × 14,148.40
  4. Step 4: Simplify right side
    28,961.68x = 614,435,866.30
  5. Step 5: Solve for x
    x = 614,435,866.30/28,961.68
  6. Step 6: Final answer
    x = 21,215.48

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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.