Home / 28,176.71-38,883.86-15,601.46

Finding the Fourth Proportional to 28,176.71, 38,883.86 and 15,601.46

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Solution

The fourth proportional to 28,176.71, 38,883.86 and 15,601.46 is: 21,530.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.71 : 38,883.86 = 15,601.46 : x
  2. Step 2: Convert to fraction form
    28,176.71/38,883.86 = 15,601.46/x
  3. Step 3: Cross multiply
    28,176.71x = 38,883.86 × 15,601.46
  4. Step 4: Simplify right side
    28,176.71x = 606,644,986.44
  5. Step 5: Solve for x
    x = 606,644,986.44/28,176.71
  6. Step 6: Final answer
    x = 21,530.01

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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.