Home / 21,232.50-31,848.84-6,441.56

Finding the Fourth Proportional to 21,232.50, 31,848.84 and 6,441.56

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Solution

The fourth proportional to 21,232.50, 31,848.84 and 6,441.56 is: 9,662.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.50 : 31,848.84 = 6,441.56 : x
  2. Step 2: Convert to fraction form
    21,232.50/31,848.84 = 6,441.56/x
  3. Step 3: Cross multiply
    21,232.50x = 31,848.84 × 6,441.56
  4. Step 4: Simplify right side
    21,232.50x = 205,156,054.55
  5. Step 5: Solve for x
    x = 205,156,054.55/21,232.50
  6. Step 6: Final answer
    x = 9,662.36

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Double scale
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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.