Home / 21,026.82-31,539.54-8,543.14

Finding the Fourth Proportional to 21,026.82, 31,539.54 and 8,543.14

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Solution

The fourth proportional to 21,026.82, 31,539.54 and 8,543.14 is: 12,814.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026.82 : 31,539.54 = 8,543.14 : x
  2. Step 2: Convert to fraction form
    21,026.82/31,539.54 = 8,543.14/x
  3. Step 3: Cross multiply
    21,026.82x = 31,539.54 × 8,543.14
  4. Step 4: Simplify right side
    21,026.82x = 269,446,705.76
  5. Step 5: Solve for x
    x = 269,446,705.76/21,026.82
  6. Step 6: Final answer
    x = 12,814.43

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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.