Home / 43,378.07-65,065.88-13,797.68

Finding the Fourth Proportional to 43,378.07, 65,065.88 and 13,797.68

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Solution

The fourth proportional to 43,378.07, 65,065.88 and 13,797.68 is: 20,696.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,378.07 : 65,065.88 = 13,797.68 : x
  2. Step 2: Convert to fraction form
    43,378.07/65,065.88 = 13,797.68/x
  3. Step 3: Cross multiply
    43,378.07x = 65,065.88 × 13,797.68
  4. Step 4: Simplify right side
    43,378.07x = 897,757,900.32
  5. Step 5: Solve for x
    x = 897,757,900.32/43,378.07
  6. Step 6: Final answer
    x = 20,696.13

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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.