Home / 43,820.60-65,714.70-14,239.40

Finding the Fourth Proportional to 43,820.60, 65,714.70 and 14,239.40

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Solution

The fourth proportional to 43,820.60, 65,714.70 and 14,239.40 is: 21,353.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,820.60 : 65,714.70 = 14,239.40 : x
  2. Step 2: Convert to fraction form
    43,820.60/65,714.70 = 14,239.40/x
  3. Step 3: Cross multiply
    43,820.60x = 65,714.70 × 14,239.40
  4. Step 4: Simplify right side
    43,820.60x = 935,737,899.18
  5. Step 5: Solve for x
    x = 935,737,899.18/43,820.60
  6. Step 6: Final answer
    x = 21,353.84

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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.