Home / 21,928.92-30,260.52-12,495.84

Finding the Fourth Proportional to 21,928.92, 30,260.52 and 12,495.84

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Solution

The fourth proportional to 21,928.92, 30,260.52 and 12,495.84 is: 17,243.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.92 : 30,260.52 = 12,495.84 : x
  2. Step 2: Convert to fraction form
    21,928.92/30,260.52 = 12,495.84/x
  3. Step 3: Cross multiply
    21,928.92x = 30,260.52 × 12,495.84
  4. Step 4: Simplify right side
    21,928.92x = 378,130,616.24
  5. Step 5: Solve for x
    x = 378,130,616.24/21,928.92
  6. Step 6: Final answer
    x = 17,243.47

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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.