Home / 21,448.34-32,161.53-8,964.95

Finding the Fourth Proportional to 21,448.34, 32,161.53 and 8,964.95

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Solution

The fourth proportional to 21,448.34, 32,161.53 and 8,964.95 is: 13,442.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.34 : 32,161.53 = 8,964.95 : x
  2. Step 2: Convert to fraction form
    21,448.34/32,161.53 = 8,964.95/x
  3. Step 3: Cross multiply
    21,448.34x = 32,161.53 × 8,964.95
  4. Step 4: Simplify right side
    21,448.34x = 288,326,605.59
  5. Step 5: Solve for x
    x = 288,326,605.59/21,448.34
  6. Step 6: Final answer
    x = 13,442.84

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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.