Home / 21,977.43-32,959.74-12,615.84

Finding the Fourth Proportional to 21,977.43, 32,959.74 and 12,615.84

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Solution

The fourth proportional to 21,977.43, 32,959.74 and 12,615.84 is: 18,920.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,977.43 : 32,959.74 = 12,615.84 : x
  2. Step 2: Convert to fraction form
    21,977.43/32,959.74 = 12,615.84/x
  3. Step 3: Cross multiply
    21,977.43x = 32,959.74 × 12,615.84
  4. Step 4: Simplify right side
    21,977.43x = 415,814,806.28
  5. Step 5: Solve for x
    x = 415,814,806.28/21,977.43
  6. Step 6: Final answer
    x = 18,920.08

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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.