Home / 19,577.70-29,366.55-13,672.80

Finding the Fourth Proportional to 19,577.70, 29,366.55 and 13,672.80

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Solution

The fourth proportional to 19,577.70, 29,366.55 and 13,672.80 is: 20,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,577.70 : 29,366.55 = 13,672.80 : x
  2. Step 2: Convert to fraction form
    19,577.70/29,366.55 = 13,672.80/x
  3. Step 3: Cross multiply
    19,577.70x = 29,366.55 × 13,672.80
  4. Step 4: Simplify right side
    19,577.70x = 401,522,964.84
  5. Step 5: Solve for x
    x = 401,522,964.84/19,577.70
  6. Step 6: Final answer
    x = 20,509.20

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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.