Home / 30,232.63-41,677.08-21,129.73

Finding the Fourth Proportional to 30,232.63, 41,677.08 and 21,129.73

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Solution

The fourth proportional to 30,232.63, 41,677.08 and 21,129.73 is: 29,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,232.63 : 41,677.08 = 21,129.73 : x
  2. Step 2: Convert to fraction form
    30,232.63/41,677.08 = 21,129.73/x
  3. Step 3: Cross multiply
    30,232.63x = 41,677.08 × 21,129.73
  4. Step 4: Simplify right side
    30,232.63x = 880,625,447.59
  5. Step 5: Solve for x
    x = 880,625,447.59/30,232.63
  6. Step 6: Final answer
    x = 29,128.31

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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.