Home / 22,017.96-30,377.36-12,579.84

Finding the Fourth Proportional to 22,017.96, 30,377.36 and 12,579.84

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Solution

The fourth proportional to 22,017.96, 30,377.36 and 12,579.84 is: 17,355.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,017.96 : 30,377.36 = 12,579.84 : x
  2. Step 2: Convert to fraction form
    22,017.96/30,377.36 = 12,579.84/x
  3. Step 3: Cross multiply
    22,017.96x = 30,377.36 × 12,579.84
  4. Step 4: Simplify right side
    22,017.96x = 382,142,328.42
  5. Step 5: Solve for x
    x = 382,142,328.42/22,017.96
  6. Step 6: Final answer
    x = 17,355.94

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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.