Home / 21,856.06-30,160.24-12,296.17

Finding the Fourth Proportional to 21,856.06, 30,160.24 and 12,296.17

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Solution

The fourth proportional to 21,856.06, 30,160.24 and 12,296.17 is: 16,968.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,856.06 : 30,160.24 = 12,296.17 : x
  2. Step 2: Convert to fraction form
    21,856.06/30,160.24 = 12,296.17/x
  3. Step 3: Cross multiply
    21,856.06x = 30,160.24 × 12,296.17
  4. Step 4: Simplify right side
    21,856.06x = 370,855,438.28
  5. Step 5: Solve for x
    x = 370,855,438.28/21,856.06
  6. Step 6: Final answer
    x = 16,968.08

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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.