Home / 21,984.09-30,340.22-12,554.07

Finding the Fourth Proportional to 21,984.09, 30,340.22 and 12,554.07

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Solution

The fourth proportional to 21,984.09, 30,340.22 and 12,554.07 is: 17,325.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,984.09 : 30,340.22 = 12,554.07 : x
  2. Step 2: Convert to fraction form
    21,984.09/30,340.22 = 12,554.07/x
  3. Step 3: Cross multiply
    21,984.09x = 30,340.22 × 12,554.07
  4. Step 4: Simplify right side
    21,984.09x = 380,893,182.93
  5. Step 5: Solve for x
    x = 380,893,182.93/21,984.09
  6. Step 6: Final answer
    x = 17,325.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.