Home / 28,046.40-42,070.68-7,269.36

Finding the Fourth Proportional to 28,046.40, 42,070.68 and 7,269.36

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Solution

The fourth proportional to 28,046.40, 42,070.68 and 7,269.36 is: 10,904.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,046.40 : 42,070.68 = 7,269.36 : x
  2. Step 2: Convert to fraction form
    28,046.40/42,070.68 = 7,269.36/x
  3. Step 3: Cross multiply
    28,046.40x = 42,070.68 × 7,269.36
  4. Step 4: Simplify right side
    28,046.40x = 305,826,918.36
  5. Step 5: Solve for x
    x = 305,826,918.36/28,046.40
  6. Step 6: Final answer
    x = 10,904.32

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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.