Home / 21,956.27-32,938.65-7,161.21

Finding the Fourth Proportional to 21,956.27, 32,938.65 and 7,161.21

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Solution

The fourth proportional to 21,956.27, 32,938.65 and 7,161.21 is: 10,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.27 : 32,938.65 = 7,161.21 : x
  2. Step 2: Convert to fraction form
    21,956.27/32,938.65 = 7,161.21/x
  3. Step 3: Cross multiply
    21,956.27x = 32,938.65 × 7,161.21
  4. Step 4: Simplify right side
    21,956.27x = 235,880,589.77
  5. Step 5: Solve for x
    x = 235,880,589.77/21,956.27
  6. Step 6: Final answer
    x = 10,743.20

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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.