Home / 20,295.24-30,438.81-7,642.50

Finding the Fourth Proportional to 20,295.24, 30,438.81 and 7,642.50

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Solution

The fourth proportional to 20,295.24, 30,438.81 and 7,642.50 is: 11,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.24 : 30,438.81 = 7,642.50 : x
  2. Step 2: Convert to fraction form
    20,295.24/30,438.81 = 7,642.50/x
  3. Step 3: Cross multiply
    20,295.24x = 30,438.81 × 7,642.50
  4. Step 4: Simplify right side
    20,295.24x = 232,628,605.43
  5. Step 5: Solve for x
    x = 232,628,605.43/20,295.24
  6. Step 6: Final answer
    x = 11,462.22

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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.