Home / 16,618.91-22,936.94-15,871.55

Finding the Fourth Proportional to 16,618.91, 22,936.94 and 15,871.55

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Solution

The fourth proportional to 16,618.91, 22,936.94 and 15,871.55 is: 21,905.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,618.91 : 22,936.94 = 15,871.55 : x
  2. Step 2: Convert to fraction form
    16,618.91/22,936.94 = 15,871.55/x
  3. Step 3: Cross multiply
    16,618.91x = 22,936.94 × 15,871.55
  4. Step 4: Simplify right side
    16,618.91x = 364,044,655.53
  5. Step 5: Solve for x
    x = 364,044,655.53/16,618.91
  6. Step 6: Final answer
    x = 21,905.45

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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.