Home / 30,049.88-41,424.84-21,070.28

Finding the Fourth Proportional to 30,049.88, 41,424.84 and 21,070.28

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Solution

The fourth proportional to 30,049.88, 41,424.84 and 21,070.28 is: 29,046.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,049.88 : 41,424.84 = 21,070.28 : x
  2. Step 2: Convert to fraction form
    30,049.88/41,424.84 = 21,070.28/x
  3. Step 3: Cross multiply
    30,049.88x = 41,424.84 × 21,070.28
  4. Step 4: Simplify right side
    30,049.88x = 872,832,977.76
  5. Step 5: Solve for x
    x = 872,832,977.76/30,049.88
  6. Step 6: Final answer
    x = 29,046.14

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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.