Home / 22,765.32-34,157.70-12,889.80

Finding the Fourth Proportional to 22,765.32, 34,157.70 and 12,889.80

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Solution

The fourth proportional to 22,765.32, 34,157.70 and 12,889.80 is: 19,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,765.32 : 34,157.70 = 12,889.80 : x
  2. Step 2: Convert to fraction form
    22,765.32/34,157.70 = 12,889.80/x
  3. Step 3: Cross multiply
    22,765.32x = 34,157.70 × 12,889.80
  4. Step 4: Simplify right side
    22,765.32x = 440,285,921.46
  5. Step 5: Solve for x
    x = 440,285,921.46/22,765.32
  6. Step 6: Final answer
    x = 19,340.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.