Home / 21,246.48-31,840.56-10,836.36

Finding the Fourth Proportional to 21,246.48, 31,840.56 and 10,836.36

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Solution

The fourth proportional to 21,246.48, 31,840.56 and 10,836.36 is: 16,239.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246.48 : 31,840.56 = 10,836.36 : x
  2. Step 2: Convert to fraction form
    21,246.48/31,840.56 = 10,836.36/x
  3. Step 3: Cross multiply
    21,246.48x = 31,840.56 × 10,836.36
  4. Step 4: Simplify right side
    21,246.48x = 345,035,770.76
  5. Step 5: Solve for x
    x = 345,035,770.76/21,246.48
  6. Step 6: Final answer
    x = 16,239.67

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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.