Home / 20,377.70-30,428.58-16,170.48

Finding the Fourth Proportional to 20,377.70, 30,428.58 and 16,170.48

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Solution

The fourth proportional to 20,377.70, 30,428.58 and 16,170.48 is: 24,146.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377.70 : 30,428.58 = 16,170.48 : x
  2. Step 2: Convert to fraction form
    20,377.70/30,428.58 = 16,170.48/x
  3. Step 3: Cross multiply
    20,377.70x = 30,428.58 × 16,170.48
  4. Step 4: Simplify right side
    20,377.70x = 492,044,744.32
  5. Step 5: Solve for x
    x = 492,044,744.32/20,377.70
  6. Step 6: Final answer
    x = 24,146.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.