Home / 21,934.14-32,886.63-12,078.06

Finding the Fourth Proportional to 21,934.14, 32,886.63 and 12,078.06

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Solution

The fourth proportional to 21,934.14, 32,886.63 and 12,078.06 is: 18,109.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.14 : 32,886.63 = 12,078.06 : x
  2. Step 2: Convert to fraction form
    21,934.14/32,886.63 = 12,078.06/x
  3. Step 3: Cross multiply
    21,934.14x = 32,886.63 × 12,078.06
  4. Step 4: Simplify right side
    21,934.14x = 397,206,690.34
  5. Step 5: Solve for x
    x = 397,206,690.34/21,934.14
  6. Step 6: Final answer
    x = 18,109.06

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1.5x scale

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.