Home / 21,262.10-31,872.34-7,925.34

Finding the Fourth Proportional to 21,262.10, 31,872.34 and 7,925.34

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Solution

The fourth proportional to 21,262.10, 31,872.34 and 7,925.34 is: 11,880.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,262.10 : 31,872.34 = 7,925.34 : x
  2. Step 2: Convert to fraction form
    21,262.10/31,872.34 = 7,925.34/x
  3. Step 3: Cross multiply
    21,262.10x = 31,872.34 × 7,925.34
  4. Step 4: Simplify right side
    21,262.10x = 252,599,215.94
  5. Step 5: Solve for x
    x = 252,599,215.94/21,262.10
  6. Step 6: Final answer
    x = 11,880.26

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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.