Home / 21,232.62-31,848.81-7,381.50

Finding the Fourth Proportional to 21,232.62, 31,848.81 and 7,381.50

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Solution

The fourth proportional to 21,232.62, 31,848.81 and 7,381.50 is: 11,072.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.62 : 31,848.81 = 7,381.50 : x
  2. Step 2: Convert to fraction form
    21,232.62/31,848.81 = 7,381.50/x
  3. Step 3: Cross multiply
    21,232.62x = 31,848.81 × 7,381.50
  4. Step 4: Simplify right side
    21,232.62x = 235,091,991.02
  5. Step 5: Solve for x
    x = 235,091,991.02/21,232.62
  6. Step 6: Final answer
    x = 11,072.21

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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.