Home / 31,521.56-47,250.44-20,435.29

Finding the Fourth Proportional to 31,521.56, 47,250.44 and 20,435.29

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Solution

The fourth proportional to 31,521.56, 47,250.44 and 20,435.29 is: 30,632.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,521.56 : 47,250.44 = 20,435.29 : x
  2. Step 2: Convert to fraction form
    31,521.56/47,250.44 = 20,435.29/x
  3. Step 3: Cross multiply
    31,521.56x = 47,250.44 × 20,435.29
  4. Step 4: Simplify right side
    31,521.56x = 965,576,300.36
  5. Step 5: Solve for x
    x = 965,576,300.36/31,521.56
  6. Step 6: Final answer
    x = 30,632.25

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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.