Home / 20,968.68-31,453.02-14,374.87

Finding the Fourth Proportional to 20,968.68, 31,453.02 and 14,374.87

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Solution

The fourth proportional to 20,968.68, 31,453.02 and 14,374.87 is: 21,562.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,968.68 : 31,453.02 = 14,374.87 : x
  2. Step 2: Convert to fraction form
    20,968.68/31,453.02 = 14,374.87/x
  3. Step 3: Cross multiply
    20,968.68x = 31,453.02 × 14,374.87
  4. Step 4: Simplify right side
    20,968.68x = 452,133,112.92
  5. Step 5: Solve for x
    x = 452,133,112.92/20,968.68
  6. Step 6: Final answer
    x = 21,562.31

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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.