Home / 28,941.20-43,381.05-13,938.96

Finding the Fourth Proportional to 28,941.20, 43,381.05 and 13,938.96

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Solution

The fourth proportional to 28,941.20, 43,381.05 and 13,938.96 is: 20,893.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.20 : 43,381.05 = 13,938.96 : x
  2. Step 2: Convert to fraction form
    28,941.20/43,381.05 = 13,938.96/x
  3. Step 3: Cross multiply
    28,941.20x = 43,381.05 × 13,938.96
  4. Step 4: Simplify right side
    28,941.20x = 604,686,831.12
  5. Step 5: Solve for x
    x = 604,686,831.12/28,941.20
  6. Step 6: Final answer
    x = 20,893.63

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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.