Home / 21,297.27-31,925.56-7,966.65

Finding the Fourth Proportional to 21,297.27, 31,925.56 and 7,966.65

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Solution

The fourth proportional to 21,297.27, 31,925.56 and 7,966.65 is: 11,942.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297.27 : 31,925.56 = 7,966.65 : x
  2. Step 2: Convert to fraction form
    21,297.27/31,925.56 = 7,966.65/x
  3. Step 3: Cross multiply
    21,297.27x = 31,925.56 × 7,966.65
  4. Step 4: Simplify right side
    21,297.27x = 254,339,762.57
  5. Step 5: Solve for x
    x = 254,339,762.57/21,297.27
  6. Step 6: Final answer
    x = 11,942.36

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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.