Home / 21,184.14-31,777.68-6,394.16

Finding the Fourth Proportional to 21,184.14, 31,777.68 and 6,394.16

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Solution

The fourth proportional to 21,184.14, 31,777.68 and 6,394.16 is: 9,591.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.14 : 31,777.68 = 6,394.16 : x
  2. Step 2: Convert to fraction form
    21,184.14/31,777.68 = 6,394.16/x
  3. Step 3: Cross multiply
    21,184.14x = 31,777.68 × 6,394.16
  4. Step 4: Simplify right side
    21,184.14x = 203,191,570.35
  5. Step 5: Solve for x
    x = 203,191,570.35/21,184.14
  6. Step 6: Final answer
    x = 9,591.68

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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.