Home / 18,967.58-28,429.20-14,272.52

Finding the Fourth Proportional to 18,967.58, 28,429.20 and 14,272.52

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Solution

The fourth proportional to 18,967.58, 28,429.20 and 14,272.52 is: 21,392.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967.58 : 28,429.20 = 14,272.52 : x
  2. Step 2: Convert to fraction form
    18,967.58/28,429.20 = 14,272.52/x
  3. Step 3: Cross multiply
    18,967.58x = 28,429.20 × 14,272.52
  4. Step 4: Simplify right side
    18,967.58x = 405,756,325.58
  5. Step 5: Solve for x
    x = 405,756,325.58/18,967.58
  6. Step 6: Final answer
    x = 21,392.10

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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.