Home / 22,190.49-30,625.75-12,628.51

Finding the Fourth Proportional to 22,190.49, 30,625.75 and 12,628.51

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Solution

The fourth proportional to 22,190.49, 30,625.75 and 12,628.51 is: 17,428.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,190.49 : 30,625.75 = 12,628.51 : x
  2. Step 2: Convert to fraction form
    22,190.49/30,625.75 = 12,628.51/x
  3. Step 3: Cross multiply
    22,190.49x = 30,625.75 × 12,628.51
  4. Step 4: Simplify right side
    22,190.49x = 386,757,437.00
  5. Step 5: Solve for x
    x = 386,757,437.00/22,190.49
  6. Step 6: Final answer
    x = 17,428.98

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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.