Home / 21,318.39-31,977.66-6,527.25

Finding the Fourth Proportional to 21,318.39, 31,977.66 and 6,527.25

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Solution

The fourth proportional to 21,318.39, 31,977.66 and 6,527.25 is: 9,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318.39 : 31,977.66 = 6,527.25 : x
  2. Step 2: Convert to fraction form
    21,318.39/31,977.66 = 6,527.25/x
  3. Step 3: Cross multiply
    21,318.39x = 31,977.66 × 6,527.25
  4. Step 4: Simplify right side
    21,318.39x = 208,726,181.24
  5. Step 5: Solve for x
    x = 208,726,181.24/21,318.39
  6. Step 6: Final answer
    x = 9,790.90

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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.