Home / 28,033.91-41,965-18,153.53

Finding the Fourth Proportional to 28,033.91, 41,965 and 18,153.53

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Solution

The fourth proportional to 28,033.91, 41,965 and 18,153.53 is: 27,174.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,033.91 : 41,965 = 18,153.53 : x
  2. Step 2: Convert to fraction form
    28,033.91/41,965 = 18,153.53/x
  3. Step 3: Cross multiply
    28,033.91x = 41,965 × 18,153.53
  4. Step 4: Simplify right side
    28,033.91x = 761,812,886.45
  5. Step 5: Solve for x
    x = 761,812,886.45/28,033.91
  6. Step 6: Final answer
    x = 27,174.69

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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.