Home / 21,965.84-30,326.86-14,425.56

Finding the Fourth Proportional to 21,965.84, 30,326.86 and 14,425.56

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Solution

The fourth proportional to 21,965.84, 30,326.86 and 14,425.56 is: 19,916.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.84 : 30,326.86 = 14,425.56 : x
  2. Step 2: Convert to fraction form
    21,965.84/30,326.86 = 14,425.56/x
  3. Step 3: Cross multiply
    21,965.84x = 30,326.86 × 14,425.56
  4. Step 4: Simplify right side
    21,965.84x = 437,481,938.54
  5. Step 5: Solve for x
    x = 437,481,938.54/21,965.84
  6. Step 6: Final answer
    x = 19,916.47

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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.