Home / 21,966.89-30,318.77-14,895.59

Finding the Fourth Proportional to 21,966.89, 30,318.77 and 14,895.59

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Solution

The fourth proportional to 21,966.89, 30,318.77 and 14,895.59 is: 20,558.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,966.89 : 30,318.77 = 14,895.59 : x
  2. Step 2: Convert to fraction form
    21,966.89/30,318.77 = 14,895.59/x
  3. Step 3: Cross multiply
    21,966.89x = 30,318.77 × 14,895.59
  4. Step 4: Simplify right side
    21,966.89x = 451,615,852.87
  5. Step 5: Solve for x
    x = 451,615,852.87/21,966.89
  6. Step 6: Final answer
    x = 20,558.94

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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.