Home / 28,056.72-38,719.42-16,123.80

Finding the Fourth Proportional to 28,056.72, 38,719.42 and 16,123.80

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Solution

The fourth proportional to 28,056.72, 38,719.42 and 16,123.80 is: 22,251.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.72 : 38,719.42 = 16,123.80 : x
  2. Step 2: Convert to fraction form
    28,056.72/38,719.42 = 16,123.80/x
  3. Step 3: Cross multiply
    28,056.72x = 38,719.42 × 16,123.80
  4. Step 4: Simplify right side
    28,056.72x = 624,304,184.20
  5. Step 5: Solve for x
    x = 624,304,184.20/28,056.72
  6. Step 6: Final answer
    x = 22,251.50

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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.