Home / 22,815.60-31,483.26-12,742.44

Finding the Fourth Proportional to 22,815.60, 31,483.26 and 12,742.44

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Solution

The fourth proportional to 22,815.60, 31,483.26 and 12,742.44 is: 17,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,815.60 : 31,483.26 = 12,742.44 : x
  2. Step 2: Convert to fraction form
    22,815.60/31,483.26 = 12,742.44/x
  3. Step 3: Cross multiply
    22,815.60x = 31,483.26 × 12,742.44
  4. Step 4: Simplify right side
    22,815.60x = 401,173,551.55
  5. Step 5: Solve for x
    x = 401,173,551.55/22,815.60
  6. Step 6: Final answer
    x = 17,583.30

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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.