Home / 29,557.05-40,789.32-16,128.67

Finding the Fourth Proportional to 29,557.05, 40,789.32 and 16,128.67

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Solution

The fourth proportional to 29,557.05, 40,789.32 and 16,128.67 is: 22,257.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,557.05 : 40,789.32 = 16,128.67 : x
  2. Step 2: Convert to fraction form
    29,557.05/40,789.32 = 16,128.67/x
  3. Step 3: Cross multiply
    29,557.05x = 40,789.32 × 16,128.67
  4. Step 4: Simplify right side
    29,557.05x = 657,877,401.16
  5. Step 5: Solve for x
    x = 657,877,401.16/29,557.05
  6. Step 6: Final answer
    x = 22,257.88

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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.