Home / 22,455.28-30,987.73-12,383.41

Finding the Fourth Proportional to 22,455.28, 30,987.73 and 12,383.41

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Solution

The fourth proportional to 22,455.28, 30,987.73 and 12,383.41 is: 17,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,455.28 : 30,987.73 = 12,383.41 : x
  2. Step 2: Convert to fraction form
    22,455.28/30,987.73 = 12,383.41/x
  3. Step 3: Cross multiply
    22,455.28x = 30,987.73 × 12,383.41
  4. Step 4: Simplify right side
    22,455.28x = 383,733,548.70
  5. Step 5: Solve for x
    x = 383,733,548.70/22,455.28
  6. Step 6: Final answer
    x = 17,088.79

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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.