Home / 19,815.81-29,517.24-18,764.01

Finding the Fourth Proportional to 19,815.81, 29,517.24 and 18,764.01

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Solution

The fourth proportional to 19,815.81, 29,517.24 and 18,764.01 is: 27,950.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.81 : 29,517.24 = 18,764.01 : x
  2. Step 2: Convert to fraction form
    19,815.81/29,517.24 = 18,764.01/x
  3. Step 3: Cross multiply
    19,815.81x = 29,517.24 × 18,764.01
  4. Step 4: Simplify right side
    19,815.81x = 553,861,786.53
  5. Step 5: Solve for x
    x = 553,861,786.53/19,815.81
  6. Step 6: Final answer
    x = 27,950.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.