Home / 21,084.56-31,626.12-9,996.56

Finding the Fourth Proportional to 21,084.56, 31,626.12 and 9,996.56

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Solution

The fourth proportional to 21,084.56, 31,626.12 and 9,996.56 is: 14,994.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,084.56 : 31,626.12 = 9,996.56 : x
  2. Step 2: Convert to fraction form
    21,084.56/31,626.12 = 9,996.56/x
  3. Step 3: Cross multiply
    21,084.56x = 31,626.12 × 9,996.56
  4. Step 4: Simplify right side
    21,084.56x = 316,152,406.15
  5. Step 5: Solve for x
    x = 316,152,406.15/21,084.56
  6. Step 6: Final answer
    x = 14,994.50

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Half scale
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Double scale
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Similar ratio
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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.