Home / 19,231.40-28,855.20-10,472.60

Finding the Fourth Proportional to 19,231.40, 28,855.20 and 10,472.60

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Solution

The fourth proportional to 19,231.40, 28,855.20 and 10,472.60 is: 15,713.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,231.40 : 28,855.20 = 10,472.60 : x
  2. Step 2: Convert to fraction form
    19,231.40/28,855.20 = 10,472.60/x
  3. Step 3: Cross multiply
    19,231.40x = 28,855.20 × 10,472.60
  4. Step 4: Simplify right side
    19,231.40x = 302,188,967.52
  5. Step 5: Solve for x
    x = 302,188,967.52/19,231.40
  6. Step 6: Final answer
    x = 15,713.31

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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.