Home / 22,014.78-30,380.40-12,583.55

Finding the Fourth Proportional to 22,014.78, 30,380.40 and 12,583.55

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Solution

The fourth proportional to 22,014.78, 30,380.40 and 12,583.55 is: 17,365.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,014.78 : 30,380.40 = 12,583.55 : x
  2. Step 2: Convert to fraction form
    22,014.78/30,380.40 = 12,583.55/x
  3. Step 3: Cross multiply
    22,014.78x = 30,380.40 × 12,583.55
  4. Step 4: Simplify right side
    22,014.78x = 382,293,130.52
  5. Step 5: Solve for x
    x = 382,293,130.52/22,014.78
  6. Step 6: Final answer
    x = 17,365.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.