Home / 28,693.69-43,043.03-8,972.35

Finding the Fourth Proportional to 28,693.69, 43,043.03 and 8,972.35

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Solution

The fourth proportional to 28,693.69, 43,043.03 and 8,972.35 is: 13,459.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,693.69 : 43,043.03 = 8,972.35 : x
  2. Step 2: Convert to fraction form
    28,693.69/43,043.03 = 8,972.35/x
  3. Step 3: Cross multiply
    28,693.69x = 43,043.03 × 8,972.35
  4. Step 4: Simplify right side
    28,693.69x = 386,197,130.22
  5. Step 5: Solve for x
    x = 386,197,130.22/28,693.69
  6. Step 6: Final answer
    x = 13,459.31

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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.