Home / 28,695.96-43,044-7,921.08

Finding the Fourth Proportional to 28,695.96, 43,044 and 7,921.08

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Solution

The fourth proportional to 28,695.96, 43,044 and 7,921.08 is: 11,881.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,695.96 : 43,044 = 7,921.08 : x
  2. Step 2: Convert to fraction form
    28,695.96/43,044 = 7,921.08/x
  3. Step 3: Cross multiply
    28,695.96x = 43,044 × 7,921.08
  4. Step 4: Simplify right side
    28,695.96x = 340,954,967.52
  5. Step 5: Solve for x
    x = 340,954,967.52/28,695.96
  6. Step 6: Final answer
    x = 11,881.64

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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.