Home / 22,391.04-30,900.96-12,962.88

Finding the Fourth Proportional to 22,391.04, 30,900.96 and 12,962.88

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Solution

The fourth proportional to 22,391.04, 30,900.96 and 12,962.88 is: 17,889.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,391.04 : 30,900.96 = 12,962.88 : x
  2. Step 2: Convert to fraction form
    22,391.04/30,900.96 = 12,962.88/x
  3. Step 3: Cross multiply
    22,391.04x = 30,900.96 × 12,962.88
  4. Step 4: Simplify right side
    22,391.04x = 400,565,436.36
  5. Step 5: Solve for x
    x = 400,565,436.36/22,391.04
  6. Step 6: Final answer
    x = 17,889.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.