Home / 28,717.38-43,064.79-12,085.38

Finding the Fourth Proportional to 28,717.38, 43,064.79 and 12,085.38

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Solution

The fourth proportional to 28,717.38, 43,064.79 and 12,085.38 is: 18,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.38 : 43,064.79 = 12,085.38 : x
  2. Step 2: Convert to fraction form
    28,717.38/43,064.79 = 12,085.38/x
  3. Step 3: Cross multiply
    28,717.38x = 43,064.79 × 12,085.38
  4. Step 4: Simplify right side
    28,717.38x = 520,454,351.77
  5. Step 5: Solve for x
    x = 520,454,351.77/28,717.38
  6. Step 6: Final answer
    x = 18,123.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.