Home / 45,023.28-67,535.79-13,858.50

Finding the Fourth Proportional to 45,023.28, 67,535.79 and 13,858.50

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Solution

The fourth proportional to 45,023.28, 67,535.79 and 13,858.50 is: 20,788.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,023.28 : 67,535.79 = 13,858.50 : x
  2. Step 2: Convert to fraction form
    45,023.28/67,535.79 = 13,858.50/x
  3. Step 3: Cross multiply
    45,023.28x = 67,535.79 × 13,858.50
  4. Step 4: Simplify right side
    45,023.28x = 935,944,745.72
  5. Step 5: Solve for x
    x = 935,944,745.72/45,023.28
  6. Step 6: Final answer
    x = 20,788.02

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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.