Home / 21,066.12-31,597.09-5,483.75

Finding the Fourth Proportional to 21,066.12, 31,597.09 and 5,483.75

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Solution

The fourth proportional to 21,066.12, 31,597.09 and 5,483.75 is: 8,225.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.12 : 31,597.09 = 5,483.75 : x
  2. Step 2: Convert to fraction form
    21,066.12/31,597.09 = 5,483.75/x
  3. Step 3: Cross multiply
    21,066.12x = 31,597.09 × 5,483.75
  4. Step 4: Simplify right side
    21,066.12x = 173,270,370.59
  5. Step 5: Solve for x
    x = 173,270,370.59/21,066.12
  6. Step 6: Final answer
    x = 8,225.07

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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.