Home / 43,520.32-65,260.32-13,931.56

Finding the Fourth Proportional to 43,520.32, 65,260.32 and 13,931.56

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Solution

The fourth proportional to 43,520.32, 65,260.32 and 13,931.56 is: 20,890.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,520.32 : 65,260.32 = 13,931.56 : x
  2. Step 2: Convert to fraction form
    43,520.32/65,260.32 = 13,931.56/x
  3. Step 3: Cross multiply
    43,520.32x = 65,260.32 × 13,931.56
  4. Step 4: Simplify right side
    43,520.32x = 909,178,063.70
  5. Step 5: Solve for x
    x = 909,178,063.70/43,520.32
  6. Step 6: Final answer
    x = 20,890.89

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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.