Home / 28,941.53-43,429.55-12,929.81

Finding the Fourth Proportional to 28,941.53, 43,429.55 and 12,929.81

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Solution

The fourth proportional to 28,941.53, 43,429.55 and 12,929.81 is: 19,402.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.53 : 43,429.55 = 12,929.81 : x
  2. Step 2: Convert to fraction form
    28,941.53/43,429.55 = 12,929.81/x
  3. Step 3: Cross multiply
    28,941.53x = 43,429.55 × 12,929.81
  4. Step 4: Simplify right side
    28,941.53x = 561,535,548.09
  5. Step 5: Solve for x
    x = 561,535,548.09/28,941.53
  6. Step 6: Final answer
    x = 19,402.42

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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.