Home / 30,139.04-45,213.44-9,367.36

Finding the Fourth Proportional to 30,139.04, 45,213.44 and 9,367.36

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Solution

The fourth proportional to 30,139.04, 45,213.44 and 9,367.36 is: 14,052.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139.04 : 45,213.44 = 9,367.36 : x
  2. Step 2: Convert to fraction form
    30,139.04/45,213.44 = 9,367.36/x
  3. Step 3: Cross multiply
    30,139.04x = 45,213.44 × 9,367.36
  4. Step 4: Simplify right side
    30,139.04x = 423,530,569.32
  5. Step 5: Solve for x
    x = 423,530,569.32/30,139.04
  6. Step 6: Final answer
    x = 14,052.56

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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.