Home / 28,176.94-38,885.39-15,601.69

Finding the Fourth Proportional to 28,176.94, 38,885.39 and 15,601.69

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Solution

The fourth proportional to 28,176.94, 38,885.39 and 15,601.69 is: 21,531.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.94 : 38,885.39 = 15,601.69 : x
  2. Step 2: Convert to fraction form
    28,176.94/38,885.39 = 15,601.69/x
  3. Step 3: Cross multiply
    28,176.94x = 38,885.39 × 15,601.69
  4. Step 4: Simplify right side
    28,176.94x = 606,677,800.31
  5. Step 5: Solve for x
    x = 606,677,800.31/28,176.94
  6. Step 6: Final answer
    x = 21,531.00

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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.