Home / 21,054.57-31,581.36-6,263.64

Finding the Fourth Proportional to 21,054.57, 31,581.36 and 6,263.64

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Solution

The fourth proportional to 21,054.57, 31,581.36 and 6,263.64 is: 9,395.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.57 : 31,581.36 = 6,263.64 : x
  2. Step 2: Convert to fraction form
    21,054.57/31,581.36 = 6,263.64/x
  3. Step 3: Cross multiply
    21,054.57x = 31,581.36 × 6,263.64
  4. Step 4: Simplify right side
    21,054.57x = 197,814,269.75
  5. Step 5: Solve for x
    x = 197,814,269.75/21,054.57
  6. Step 6: Final answer
    x = 9,395.31

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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.