Home / 21,007.96-31,516.49-6,217.91

Finding the Fourth Proportional to 21,007.96, 31,516.49 and 6,217.91

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Solution

The fourth proportional to 21,007.96, 31,516.49 and 6,217.91 is: 9,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,007.96 : 31,516.49 = 6,217.91 : x
  2. Step 2: Convert to fraction form
    21,007.96/31,516.49 = 6,217.91/x
  3. Step 3: Cross multiply
    21,007.96x = 31,516.49 × 6,217.91
  4. Step 4: Simplify right side
    21,007.96x = 195,966,851.77
  5. Step 5: Solve for x
    x = 195,966,851.77/21,007.96
  6. Step 6: Final answer
    x = 9,328.22

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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.