Home / 28,631.92-42,941.40-13,054

Finding the Fourth Proportional to 28,631.92, 42,941.40 and 13,054

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Solution

The fourth proportional to 28,631.92, 42,941.40 and 13,054 is: 19,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.92 : 42,941.40 = 13,054 : x
  2. Step 2: Convert to fraction form
    28,631.92/42,941.40 = 13,054/x
  3. Step 3: Cross multiply
    28,631.92x = 42,941.40 × 13,054
  4. Step 4: Simplify right side
    28,631.92x = 560,557,035.60
  5. Step 5: Solve for x
    x = 560,557,035.60/28,631.92
  6. Step 6: Final answer
    x = 19,578.05

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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.