Home / 21,204.24-31,807.26-7,164.60

Finding the Fourth Proportional to 21,204.24, 31,807.26 and 7,164.60

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Solution

The fourth proportional to 21,204.24, 31,807.26 and 7,164.60 is: 10,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204.24 : 31,807.26 = 7,164.60 : x
  2. Step 2: Convert to fraction form
    21,204.24/31,807.26 = 7,164.60/x
  3. Step 3: Cross multiply
    21,204.24x = 31,807.26 × 7,164.60
  4. Step 4: Simplify right side
    21,204.24x = 227,886,295.00
  5. Step 5: Solve for x
    x = 227,886,295.00/21,204.24
  6. Step 6: Final answer
    x = 10,747.20

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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.