Home / 28,171.99-38,881.85-16,076.40

Finding the Fourth Proportional to 28,171.99, 38,881.85 and 16,076.40

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Solution

The fourth proportional to 28,171.99, 38,881.85 and 16,076.40 is: 22,188.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.99 : 38,881.85 = 16,076.40 : x
  2. Step 2: Convert to fraction form
    28,171.99/38,881.85 = 16,076.40/x
  3. Step 3: Cross multiply
    28,171.99x = 38,881.85 × 16,076.40
  4. Step 4: Simplify right side
    28,171.99x = 625,080,173.34
  5. Step 5: Solve for x
    x = 625,080,173.34/28,171.99
  6. Step 6: Final answer
    x = 22,188.00

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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.