Home / 31,322.34-43,231.11-18,582.60

Finding the Fourth Proportional to 31,322.34, 43,231.11 and 18,582.60

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Solution

The fourth proportional to 31,322.34, 43,231.11 and 18,582.60 is: 25,647.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,322.34 : 43,231.11 = 18,582.60 : x
  2. Step 2: Convert to fraction form
    31,322.34/43,231.11 = 18,582.60/x
  3. Step 3: Cross multiply
    31,322.34x = 43,231.11 × 18,582.60
  4. Step 4: Simplify right side
    31,322.34x = 803,346,297.41
  5. Step 5: Solve for x
    x = 803,346,297.41/31,322.34
  6. Step 6: Final answer
    x = 25,647.71

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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.