Home / 20,953.36-31,426.04-6,162.96

Finding the Fourth Proportional to 20,953.36, 31,426.04 and 6,162.96

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Solution

The fourth proportional to 20,953.36, 31,426.04 and 6,162.96 is: 9,243.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953.36 : 31,426.04 = 6,162.96 : x
  2. Step 2: Convert to fraction form
    20,953.36/31,426.04 = 6,162.96/x
  3. Step 3: Cross multiply
    20,953.36x = 31,426.04 × 6,162.96
  4. Step 4: Simplify right side
    20,953.36x = 193,677,427.48
  5. Step 5: Solve for x
    x = 193,677,427.48/20,953.36
  6. Step 6: Final answer
    x = 9,243.26

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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.