Home / 19,288.42-28,899.60-10,529.47

Finding the Fourth Proportional to 19,288.42, 28,899.60 and 10,529.47

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Solution

The fourth proportional to 19,288.42, 28,899.60 and 10,529.47 is: 15,776.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.42 : 28,899.60 = 10,529.47 : x
  2. Step 2: Convert to fraction form
    19,288.42/28,899.60 = 10,529.47/x
  3. Step 3: Cross multiply
    19,288.42x = 28,899.60 × 10,529.47
  4. Step 4: Simplify right side
    19,288.42x = 304,297,471.21
  5. Step 5: Solve for x
    x = 304,297,471.21/19,288.42
  6. Step 6: Final answer
    x = 15,776.17

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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.