Home / 43,420.84-65,128.86-12,254.44

Finding the Fourth Proportional to 43,420.84, 65,128.86 and 12,254.44

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Solution

The fourth proportional to 43,420.84, 65,128.86 and 12,254.44 is: 18,380.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,420.84 : 65,128.86 = 12,254.44 : x
  2. Step 2: Convert to fraction form
    43,420.84/65,128.86 = 12,254.44/x
  3. Step 3: Cross multiply
    43,420.84x = 65,128.86 × 12,254.44
  4. Step 4: Simplify right side
    43,420.84x = 798,117,707.14
  5. Step 5: Solve for x
    x = 798,117,707.14/43,420.84
  6. Step 6: Final answer
    x = 18,380.98

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1.5x scale

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.