Home / 21,486.51-32,236.77-18,012.84

Finding the Fourth Proportional to 21,486.51, 32,236.77 and 18,012.84

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Solution

The fourth proportional to 21,486.51, 32,236.77 and 18,012.84 is: 27,025.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.51 : 32,236.77 = 18,012.84 : x
  2. Step 2: Convert to fraction form
    21,486.51/32,236.77 = 18,012.84/x
  3. Step 3: Cross multiply
    21,486.51x = 32,236.77 × 18,012.84
  4. Step 4: Simplify right side
    21,486.51x = 580,675,780.13
  5. Step 5: Solve for x
    x = 580,675,780.13/21,486.51
  6. Step 6: Final answer
    x = 27,025.13

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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.