Home / 30,539.75-45,802.26-12,760.79

Finding the Fourth Proportional to 30,539.75, 45,802.26 and 12,760.79

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Solution

The fourth proportional to 30,539.75, 45,802.26 and 12,760.79 is: 19,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,539.75 : 45,802.26 = 12,760.79 : x
  2. Step 2: Convert to fraction form
    30,539.75/45,802.26 = 12,760.79/x
  3. Step 3: Cross multiply
    30,539.75x = 45,802.26 × 12,760.79
  4. Step 4: Simplify right side
    30,539.75x = 584,472,792.37
  5. Step 5: Solve for x
    x = 584,472,792.37/30,539.75
  6. Step 6: Final answer
    x = 19,138.10

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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.