Home / 28,140.32-38,827.68-16,806.80

Finding the Fourth Proportional to 28,140.32, 38,827.68 and 16,806.80

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Solution

The fourth proportional to 28,140.32, 38,827.68 and 16,806.80 is: 23,189.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.32 : 38,827.68 = 16,806.80 : x
  2. Step 2: Convert to fraction form
    28,140.32/38,827.68 = 16,806.80/x
  3. Step 3: Cross multiply
    28,140.32x = 38,827.68 × 16,806.80
  4. Step 4: Simplify right side
    28,140.32x = 652,569,052.22
  5. Step 5: Solve for x
    x = 652,569,052.22/28,140.32
  6. Step 6: Final answer
    x = 23,189.82

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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.