Home / 31,518.28-47,193.90-19,021.60

Finding the Fourth Proportional to 31,518.28, 47,193.90 and 19,021.60

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Solution

The fourth proportional to 31,518.28, 47,193.90 and 19,021.60 is: 28,481.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,518.28 : 47,193.90 = 19,021.60 : x
  2. Step 2: Convert to fraction form
    31,518.28/47,193.90 = 19,021.60/x
  3. Step 3: Cross multiply
    31,518.28x = 47,193.90 × 19,021.60
  4. Step 4: Simplify right side
    31,518.28x = 897,703,488.24
  5. Step 5: Solve for x
    x = 897,703,488.24/31,518.28
  6. Step 6: Final answer
    x = 28,481.99

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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.