Home / 19,043.20-28,564.80-14,122.45

Finding the Fourth Proportional to 19,043.20, 28,564.80 and 14,122.45

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Solution

The fourth proportional to 19,043.20, 28,564.80 and 14,122.45 is: 21,183.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,043.20 : 28,564.80 = 14,122.45 : x
  2. Step 2: Convert to fraction form
    19,043.20/28,564.80 = 14,122.45/x
  3. Step 3: Cross multiply
    19,043.20x = 28,564.80 × 14,122.45
  4. Step 4: Simplify right side
    19,043.20x = 403,404,959.76
  5. Step 5: Solve for x
    x = 403,404,959.76/19,043.20
  6. Step 6: Final answer
    x = 21,183.68

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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.