Home / 31,518.42-47,228.38-18,199.60

Finding the Fourth Proportional to 31,518.42, 47,228.38 and 18,199.60

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Solution

The fourth proportional to 31,518.42, 47,228.38 and 18,199.60 is: 27,270.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,518.42 : 47,228.38 = 18,199.60 : x
  2. Step 2: Convert to fraction form
    31,518.42/47,228.38 = 18,199.60/x
  3. Step 3: Cross multiply
    31,518.42x = 47,228.38 × 18,199.60
  4. Step 4: Simplify right side
    31,518.42x = 859,537,624.65
  5. Step 5: Solve for x
    x = 859,537,624.65/31,518.42
  6. Step 6: Final answer
    x = 27,270.96

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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.