Home / 21,036.36-31,554.39-6,997.44

Finding the Fourth Proportional to 21,036.36, 31,554.39 and 6,997.44

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Solution

The fourth proportional to 21,036.36, 31,554.39 and 6,997.44 is: 10,496.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,036.36 : 31,554.39 = 6,997.44 : x
  2. Step 2: Convert to fraction form
    21,036.36/31,554.39 = 6,997.44/x
  3. Step 3: Cross multiply
    21,036.36x = 31,554.39 × 6,997.44
  4. Step 4: Simplify right side
    21,036.36x = 220,799,950.76
  5. Step 5: Solve for x
    x = 220,799,950.76/21,036.36
  6. Step 6: Final answer
    x = 10,496.11

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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.