Home / 20,883.69-31,325.67-5,301.36

Finding the Fourth Proportional to 20,883.69, 31,325.67 and 5,301.36

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Solution

The fourth proportional to 20,883.69, 31,325.67 and 5,301.36 is: 7,952.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.69 : 31,325.67 = 5,301.36 : x
  2. Step 2: Convert to fraction form
    20,883.69/31,325.67 = 5,301.36/x
  3. Step 3: Cross multiply
    20,883.69x = 31,325.67 × 5,301.36
  4. Step 4: Simplify right side
    20,883.69x = 166,068,653.91
  5. Step 5: Solve for x
    x = 166,068,653.91/20,883.69
  6. Step 6: Final answer
    x = 7,952.07

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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.