Home / 21,432.42-29,571.96-12,935.94

Finding the Fourth Proportional to 21,432.42, 29,571.96 and 12,935.94

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Solution

The fourth proportional to 21,432.42, 29,571.96 and 12,935.94 is: 17,848.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432.42 : 29,571.96 = 12,935.94 : x
  2. Step 2: Convert to fraction form
    21,432.42/29,571.96 = 12,935.94/x
  3. Step 3: Cross multiply
    21,432.42x = 29,571.96 × 12,935.94
  4. Step 4: Simplify right side
    21,432.42x = 382,541,100.24
  5. Step 5: Solve for x
    x = 382,541,100.24/21,432.42
  6. Step 6: Final answer
    x = 17,848.71

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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.