Home / 28,929.70-43,361.12-13,314.52

Finding the Fourth Proportional to 28,929.70, 43,361.12 and 13,314.52

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Solution

The fourth proportional to 28,929.70, 43,361.12 and 13,314.52 is: 19,956.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,929.70 : 43,361.12 = 13,314.52 : x
  2. Step 2: Convert to fraction form
    28,929.70/43,361.12 = 13,314.52/x
  3. Step 3: Cross multiply
    28,929.70x = 43,361.12 × 13,314.52
  4. Step 4: Simplify right side
    28,929.70x = 577,332,499.46
  5. Step 5: Solve for x
    x = 577,332,499.46/28,929.70
  6. Step 6: Final answer
    x = 19,956.39

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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.