Home / 19,235.20-28,845.60-6,750.40

Finding the Fourth Proportional to 19,235.20, 28,845.60 and 6,750.40

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Solution

The fourth proportional to 19,235.20, 28,845.60 and 6,750.40 is: 10,123.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,235.20 : 28,845.60 = 6,750.40 : x
  2. Step 2: Convert to fraction form
    19,235.20/28,845.60 = 6,750.40/x
  3. Step 3: Cross multiply
    19,235.20x = 28,845.60 × 6,750.40
  4. Step 4: Simplify right side
    19,235.20x = 194,719,338.24
  5. Step 5: Solve for x
    x = 194,719,338.24/19,235.20
  6. Step 6: Final answer
    x = 10,123.07

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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.