Home / 21,795.06-30,077.95-12,850.23

Finding the Fourth Proportional to 21,795.06, 30,077.95 and 12,850.23

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Solution

The fourth proportional to 21,795.06, 30,077.95 and 12,850.23 is: 17,733.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,795.06 : 30,077.95 = 12,850.23 : x
  2. Step 2: Convert to fraction form
    21,795.06/30,077.95 = 12,850.23/x
  3. Step 3: Cross multiply
    21,795.06x = 30,077.95 × 12,850.23
  4. Step 4: Simplify right side
    21,795.06x = 386,508,575.43
  5. Step 5: Solve for x
    x = 386,508,575.43/21,795.06
  6. Step 6: Final answer
    x = 17,733.77

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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.