Home / 21,262.24-31,872.54-7,925.47

Finding the Fourth Proportional to 21,262.24, 31,872.54 and 7,925.47

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Solution

The fourth proportional to 21,262.24, 31,872.54 and 7,925.47 is: 11,880.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,262.24 : 31,872.54 = 7,925.47 : x
  2. Step 2: Convert to fraction form
    21,262.24/31,872.54 = 7,925.47/x
  3. Step 3: Cross multiply
    21,262.24x = 31,872.54 × 7,925.47
  4. Step 4: Simplify right side
    21,262.24x = 252,604,859.59
  5. Step 5: Solve for x
    x = 252,604,859.59/21,262.24
  6. Step 6: Final answer
    x = 11,880.44

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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.