Home / 21,477.20-32,302.20-19,230.80

Finding the Fourth Proportional to 21,477.20, 32,302.20 and 19,230.80

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Solution

The fourth proportional to 21,477.20, 32,302.20 and 19,230.80 is: 28,923.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477.20 : 32,302.20 = 19,230.80 : x
  2. Step 2: Convert to fraction form
    21,477.20/32,302.20 = 19,230.80/x
  3. Step 3: Cross multiply
    21,477.20x = 32,302.20 × 19,230.80
  4. Step 4: Simplify right side
    21,477.20x = 621,197,147.76
  5. Step 5: Solve for x
    x = 621,197,147.76/21,477.20
  6. Step 6: Final answer
    x = 28,923.56

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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.