Home / 13,281.48-19,923.24-3,420.84

Finding the Fourth Proportional to 13,281.48, 19,923.24 and 3,420.84

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Solution

The fourth proportional to 13,281.48, 19,923.24 and 3,420.84 is: 5,131.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.48 : 19,923.24 = 3,420.84 : x
  2. Step 2: Convert to fraction form
    13,281.48/19,923.24 = 3,420.84/x
  3. Step 3: Cross multiply
    13,281.48x = 19,923.24 × 3,420.84
  4. Step 4: Simplify right side
    13,281.48x = 68,154,216.32
  5. Step 5: Solve for x
    x = 68,154,216.32/13,281.48
  6. Step 6: Final answer
    x = 5,131.52

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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.