Home / 20,741.64-28,624.80-11,785.74

Finding the Fourth Proportional to 20,741.64, 28,624.80 and 11,785.74

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Solution

The fourth proportional to 20,741.64, 28,624.80 and 11,785.74 is: 16,265.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.64 : 28,624.80 = 11,785.74 : x
  2. Step 2: Convert to fraction form
    20,741.64/28,624.80 = 11,785.74/x
  3. Step 3: Cross multiply
    20,741.64x = 28,624.80 × 11,785.74
  4. Step 4: Simplify right side
    20,741.64x = 337,364,450.35
  5. Step 5: Solve for x
    x = 337,364,450.35/20,741.64
  6. Step 6: Final answer
    x = 16,265.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.