Home / 22,428.51-30,951.09-12,996.87

Finding the Fourth Proportional to 22,428.51, 30,951.09 and 12,996.87

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Solution

The fourth proportional to 22,428.51, 30,951.09 and 12,996.87 is: 17,935.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,428.51 : 30,951.09 = 12,996.87 : x
  2. Step 2: Convert to fraction form
    22,428.51/30,951.09 = 12,996.87/x
  3. Step 3: Cross multiply
    22,428.51x = 30,951.09 × 12,996.87
  4. Step 4: Simplify right side
    22,428.51x = 402,267,293.09
  5. Step 5: Solve for x
    x = 402,267,293.09/22,428.51
  6. Step 6: Final answer
    x = 17,935.53

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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.