Home / 30,329.76-45,499.52-12,802.20

Finding the Fourth Proportional to 30,329.76, 45,499.52 and 12,802.20

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Solution

The fourth proportional to 30,329.76, 45,499.52 and 12,802.20 is: 19,205.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,329.76 : 45,499.52 = 12,802.20 : x
  2. Step 2: Convert to fraction form
    30,329.76/45,499.52 = 12,802.20/x
  3. Step 3: Cross multiply
    30,329.76x = 45,499.52 × 12,802.20
  4. Step 4: Simplify right side
    30,329.76x = 582,493,954.94
  5. Step 5: Solve for x
    x = 582,493,954.94/30,329.76
  6. Step 6: Final answer
    x = 19,205.36

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1.5x scale

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.