Home / 21,859.56-30,166.14-12,299.46

Finding the Fourth Proportional to 21,859.56, 30,166.14 and 12,299.46

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Solution

The fourth proportional to 21,859.56, 30,166.14 and 12,299.46 is: 16,973.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,859.56 : 30,166.14 = 12,299.46 : x
  2. Step 2: Convert to fraction form
    21,859.56/30,166.14 = 12,299.46/x
  3. Step 3: Cross multiply
    21,859.56x = 30,166.14 × 12,299.46
  4. Step 4: Simplify right side
    21,859.56x = 371,027,232.28
  5. Step 5: Solve for x
    x = 371,027,232.28/21,859.56
  6. Step 6: Final answer
    x = 16,973.23

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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.