Home / 21,968.03-32,973.91-12,111.95

Finding the Fourth Proportional to 21,968.03, 32,973.91 and 12,111.95

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Solution

The fourth proportional to 21,968.03, 32,973.91 and 12,111.95 is: 18,179.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.03 : 32,973.91 = 12,111.95 : x
  2. Step 2: Convert to fraction form
    21,968.03/32,973.91 = 12,111.95/x
  3. Step 3: Cross multiply
    21,968.03x = 32,973.91 × 12,111.95
  4. Step 4: Simplify right side
    21,968.03x = 399,378,154.08
  5. Step 5: Solve for x
    x = 399,378,154.08/21,968.03
  6. Step 6: Final answer
    x = 18,179.98

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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.