Home / 43,308.74-64,992.28-19,622.72

Finding the Fourth Proportional to 43,308.74, 64,992.28 and 19,622.72

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Solution

The fourth proportional to 43,308.74, 64,992.28 and 19,622.72 is: 29,447.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,308.74 : 64,992.28 = 19,622.72 : x
  2. Step 2: Convert to fraction form
    43,308.74/64,992.28 = 19,622.72/x
  3. Step 3: Cross multiply
    43,308.74x = 64,992.28 × 19,622.72
  4. Step 4: Simplify right side
    43,308.74x = 1,275,325,312.60
  5. Step 5: Solve for x
    x = 1,275,325,312.60/43,308.74
  6. Step 6: Final answer
    x = 29,447.30

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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.