Home / 30,989.75-46,466.14-12,272.47

Finding the Fourth Proportional to 30,989.75, 46,466.14 and 12,272.47

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Solution

The fourth proportional to 30,989.75, 46,466.14 and 12,272.47 is: 18,401.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,989.75 : 46,466.14 = 12,272.47 : x
  2. Step 2: Convert to fraction form
    30,989.75/46,466.14 = 12,272.47/x
  3. Step 3: Cross multiply
    30,989.75x = 46,466.14 × 12,272.47
  4. Step 4: Simplify right side
    30,989.75x = 570,254,309.17
  5. Step 5: Solve for x
    x = 570,254,309.17/30,989.75
  6. Step 6: Final answer
    x = 18,401.39

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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.