Home / 21,516.28-32,276.40-8,369.65

Finding the Fourth Proportional to 21,516.28, 32,276.40 and 8,369.65

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Solution

The fourth proportional to 21,516.28, 32,276.40 and 8,369.65 is: 12,555.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516.28 : 32,276.40 = 8,369.65 : x
  2. Step 2: Convert to fraction form
    21,516.28/32,276.40 = 8,369.65/x
  3. Step 3: Cross multiply
    21,516.28x = 32,276.40 × 8,369.65
  4. Step 4: Simplify right side
    21,516.28x = 270,142,009.88
  5. Step 5: Solve for x
    x = 270,142,009.88/21,516.28
  6. Step 6: Final answer
    x = 12,555.24

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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.