Home / 21,554.32-32,331.46-6,764.40

Finding the Fourth Proportional to 21,554.32, 32,331.46 and 6,764.40

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Solution

The fourth proportional to 21,554.32, 32,331.46 and 6,764.40 is: 10,146.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554.32 : 32,331.46 = 6,764.40 : x
  2. Step 2: Convert to fraction form
    21,554.32/32,331.46 = 6,764.40/x
  3. Step 3: Cross multiply
    21,554.32x = 32,331.46 × 6,764.40
  4. Step 4: Simplify right side
    21,554.32x = 218,702,928.02
  5. Step 5: Solve for x
    x = 218,702,928.02/21,554.32
  6. Step 6: Final answer
    x = 10,146.59

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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.