Home / 21,355.43-32,011.70-7,305.84

Finding the Fourth Proportional to 21,355.43, 32,011.70 and 7,305.84

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Solution

The fourth proportional to 21,355.43, 32,011.70 and 7,305.84 is: 10,951.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,355.43 : 32,011.70 = 7,305.84 : x
  2. Step 2: Convert to fraction form
    21,355.43/32,011.70 = 7,305.84/x
  3. Step 3: Cross multiply
    21,355.43x = 32,011.70 × 7,305.84
  4. Step 4: Simplify right side
    21,355.43x = 233,872,321.80
  5. Step 5: Solve for x
    x = 233,872,321.80/21,355.43
  6. Step 6: Final answer
    x = 10,951.42

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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.