Home / 43,342.48-65,013.11-13,759.86

Finding the Fourth Proportional to 43,342.48, 65,013.11 and 13,759.86

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Solution

The fourth proportional to 43,342.48, 65,013.11 and 13,759.86 is: 20,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,342.48 : 65,013.11 = 13,759.86 : x
  2. Step 2: Convert to fraction form
    43,342.48/65,013.11 = 13,759.86/x
  3. Step 3: Cross multiply
    43,342.48x = 65,013.11 × 13,759.86
  4. Step 4: Simplify right side
    43,342.48x = 894,571,291.76
  5. Step 5: Solve for x
    x = 894,571,291.76/43,342.48
  6. Step 6: Final answer
    x = 20,639.60

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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.