Home / 28,698.68-43,051.32-7,639.01

Finding the Fourth Proportional to 28,698.68, 43,051.32 and 7,639.01

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Solution

The fourth proportional to 28,698.68, 43,051.32 and 7,639.01 is: 11,459.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,698.68 : 43,051.32 = 7,639.01 : x
  2. Step 2: Convert to fraction form
    28,698.68/43,051.32 = 7,639.01/x
  3. Step 3: Cross multiply
    28,698.68x = 43,051.32 × 7,639.01
  4. Step 4: Simplify right side
    28,698.68x = 328,869,431.66
  5. Step 5: Solve for x
    x = 328,869,431.66/28,698.68
  6. Step 6: Final answer
    x = 11,459.39

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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.