Home / 28,176.66-38,885.00-15,601.41

Finding the Fourth Proportional to 28,176.66, 38,885.00 and 15,601.41

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Solution

The fourth proportional to 28,176.66, 38,885.00 and 15,601.41 is: 21,530.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.66 : 38,885.00 = 15,601.41 : x
  2. Step 2: Convert to fraction form
    28,176.66/38,885.00 = 15,601.41/x
  3. Step 3: Cross multiply
    28,176.66x = 38,885.00 × 15,601.41
  4. Step 4: Simplify right side
    28,176.66x = 606,660,721.03
  5. Step 5: Solve for x
    x = 606,660,721.03/28,176.66
  6. Step 6: Final answer
    x = 21,530.61

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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.