Home / 28,168.16-38,890.16-18,101

Finding the Fourth Proportional to 28,168.16, 38,890.16 and 18,101

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Solution

The fourth proportional to 28,168.16, 38,890.16 and 18,101 is: 24,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168.16 : 38,890.16 = 18,101 : x
  2. Step 2: Convert to fraction form
    28,168.16/38,890.16 = 18,101/x
  3. Step 3: Cross multiply
    28,168.16x = 38,890.16 × 18,101
  4. Step 4: Simplify right side
    28,168.16x = 703,950,786.16
  5. Step 5: Solve for x
    x = 703,950,786.16/28,168.16
  6. Step 6: Final answer
    x = 24,991.01

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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.