Home / 28,185.71-38,886.62-16,077.49

Finding the Fourth Proportional to 28,185.71, 38,886.62 and 16,077.49

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Solution

The fourth proportional to 28,185.71, 38,886.62 and 16,077.49 is: 22,181.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,185.71 : 38,886.62 = 16,077.49 : x
  2. Step 2: Convert to fraction form
    28,185.71/38,886.62 = 16,077.49/x
  3. Step 3: Cross multiply
    28,185.71x = 38,886.62 × 16,077.49
  4. Step 4: Simplify right side
    28,185.71x = 625,199,381.59
  5. Step 5: Solve for x
    x = 625,199,381.59/28,185.71
  6. Step 6: Final answer
    x = 22,181.43

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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.