Home / 21,034.25-29,027.63-13,595.21

Finding the Fourth Proportional to 21,034.25, 29,027.63 and 13,595.21

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Solution

The fourth proportional to 21,034.25, 29,027.63 and 13,595.21 is: 18,761.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.25 : 29,027.63 = 13,595.21 : x
  2. Step 2: Convert to fraction form
    21,034.25/29,027.63 = 13,595.21/x
  3. Step 3: Cross multiply
    21,034.25x = 29,027.63 × 13,595.21
  4. Step 4: Simplify right side
    21,034.25x = 394,636,657.68
  5. Step 5: Solve for x
    x = 394,636,657.68/21,034.25
  6. Step 6: Final answer
    x = 18,761.62

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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.