Home / 28,123.53-38,812.17-16,186.61

Finding the Fourth Proportional to 28,123.53, 38,812.17 and 16,186.61

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Solution

The fourth proportional to 28,123.53, 38,812.17 and 16,186.61 is: 22,338.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,123.53 : 38,812.17 = 16,186.61 : x
  2. Step 2: Convert to fraction form
    28,123.53/38,812.17 = 16,186.61/x
  3. Step 3: Cross multiply
    28,123.53x = 38,812.17 × 16,186.61
  4. Step 4: Simplify right side
    28,123.53x = 628,237,264.98
  5. Step 5: Solve for x
    x = 628,237,264.98/28,123.53
  6. Step 6: Final answer
    x = 22,338.49

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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.