Home / 21,433.28-32,154.90-6,641.42

Finding the Fourth Proportional to 21,433.28, 32,154.90 and 6,641.42

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Solution

The fourth proportional to 21,433.28, 32,154.90 and 6,641.42 is: 9,963.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.28 : 32,154.90 = 6,641.42 : x
  2. Step 2: Convert to fraction form
    21,433.28/32,154.90 = 6,641.42/x
  3. Step 3: Cross multiply
    21,433.28x = 32,154.90 × 6,641.42
  4. Step 4: Simplify right side
    21,433.28x = 213,554,195.96
  5. Step 5: Solve for x
    x = 213,554,195.96/21,433.28
  6. Step 6: Final answer
    x = 9,963.67

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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.