Home / 31,151.30-46,741.54-13,618.86

Finding the Fourth Proportional to 31,151.30, 46,741.54 and 13,618.86

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Solution

The fourth proportional to 31,151.30, 46,741.54 and 13,618.86 is: 20,434.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,151.30 : 46,741.54 = 13,618.86 : x
  2. Step 2: Convert to fraction form
    31,151.30/46,741.54 = 13,618.86/x
  3. Step 3: Cross multiply
    31,151.30x = 46,741.54 × 13,618.86
  4. Step 4: Simplify right side
    31,151.30x = 636,566,489.44
  5. Step 5: Solve for x
    x = 636,566,489.44/31,151.30
  6. Step 6: Final answer
    x = 20,434.67

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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.