Home / 21,968.70-30,366.66-20,224.92

Finding the Fourth Proportional to 21,968.70, 30,366.66 and 20,224.92

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Solution

The fourth proportional to 21,968.70, 30,366.66 and 20,224.92 is: 27,956.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.70 : 30,366.66 = 20,224.92 : x
  2. Step 2: Convert to fraction form
    21,968.70/30,366.66 = 20,224.92/x
  3. Step 3: Cross multiply
    21,968.70x = 30,366.66 × 20,224.92
  4. Step 4: Simplify right side
    21,968.70x = 614,163,269.17
  5. Step 5: Solve for x
    x = 614,163,269.17/21,968.70
  6. Step 6: Final answer
    x = 27,956.29

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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.