Home / 21,405.38-29,546.26-15,033.50

Finding the Fourth Proportional to 21,405.38, 29,546.26 and 15,033.50

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Solution

The fourth proportional to 21,405.38, 29,546.26 and 15,033.50 is: 20,751.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405.38 : 29,546.26 = 15,033.50 : x
  2. Step 2: Convert to fraction form
    21,405.38/29,546.26 = 15,033.50/x
  3. Step 3: Cross multiply
    21,405.38x = 29,546.26 × 15,033.50
  4. Step 4: Simplify right side
    21,405.38x = 444,183,699.71
  5. Step 5: Solve for x
    x = 444,183,699.71/21,405.38
  6. Step 6: Final answer
    x = 20,751.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.