Home / 18,967.47-28,429.02-14,272.41

Finding the Fourth Proportional to 18,967.47, 28,429.02 and 14,272.41

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Solution

The fourth proportional to 18,967.47, 28,429.02 and 14,272.41 is: 21,391.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967.47 : 28,429.02 = 14,272.41 : x
  2. Step 2: Convert to fraction form
    18,967.47/28,429.02 = 14,272.41/x
  3. Step 3: Cross multiply
    18,967.47x = 28,429.02 × 14,272.41
  4. Step 4: Simplify right side
    18,967.47x = 405,750,629.34
  5. Step 5: Solve for x
    x = 405,750,629.34/18,967.47
  6. Step 6: Final answer
    x = 21,391.92

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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.