Home / 31,464.64-43,421.34-18,036.67

Finding the Fourth Proportional to 31,464.64, 43,421.34 and 18,036.67

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Solution

The fourth proportional to 31,464.64, 43,421.34 and 18,036.67 is: 24,890.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,464.64 : 43,421.34 = 18,036.67 : x
  2. Step 2: Convert to fraction form
    31,464.64/43,421.34 = 18,036.67/x
  3. Step 3: Cross multiply
    31,464.64x = 43,421.34 × 18,036.67
  4. Step 4: Simplify right side
    31,464.64x = 783,176,380.54
  5. Step 5: Solve for x
    x = 783,176,380.54/31,464.64
  6. Step 6: Final answer
    x = 24,890.68

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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.