Home / 21,367.68-32,007.76-12,576.48

Finding the Fourth Proportional to 21,367.68, 32,007.76 and 12,576.48

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Solution

The fourth proportional to 21,367.68, 32,007.76 and 12,576.48 is: 18,838.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.68 : 32,007.76 = 12,576.48 : x
  2. Step 2: Convert to fraction form
    21,367.68/32,007.76 = 12,576.48/x
  3. Step 3: Cross multiply
    21,367.68x = 32,007.76 × 12,576.48
  4. Step 4: Simplify right side
    21,367.68x = 402,544,953.48
  5. Step 5: Solve for x
    x = 402,544,953.48/21,367.68
  6. Step 6: Final answer
    x = 18,838.96

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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.