Home / 19,235.40-28,820.70-15,930.60

Finding the Fourth Proportional to 19,235.40, 28,820.70 and 15,930.60

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Solution

The fourth proportional to 19,235.40, 28,820.70 and 15,930.60 is: 23,869.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,235.40 : 28,820.70 = 15,930.60 : x
  2. Step 2: Convert to fraction form
    19,235.40/28,820.70 = 15,930.60/x
  3. Step 3: Cross multiply
    19,235.40x = 28,820.70 × 15,930.60
  4. Step 4: Simplify right side
    19,235.40x = 459,131,043.42
  5. Step 5: Solve for x
    x = 459,131,043.42/19,235.40
  6. Step 6: Final answer
    x = 23,869.07

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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.