Home / 22,020.58-30,383.13-12,586.78

Finding the Fourth Proportional to 22,020.58, 30,383.13 and 12,586.78

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Solution

The fourth proportional to 22,020.58, 30,383.13 and 12,586.78 is: 17,366.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,020.58 : 30,383.13 = 12,586.78 : x
  2. Step 2: Convert to fraction form
    22,020.58/30,383.13 = 12,586.78/x
  3. Step 3: Cross multiply
    22,020.58x = 30,383.13 × 12,586.78
  4. Step 4: Simplify right side
    22,020.58x = 382,425,773.02
  5. Step 5: Solve for x
    x = 382,425,773.02/22,020.58
  6. Step 6: Final answer
    x = 17,366.74

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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.