Home / 21,007.22-31,499.89-6,214.13

Finding the Fourth Proportional to 21,007.22, 31,499.89 and 6,214.13

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Solution

The fourth proportional to 21,007.22, 31,499.89 and 6,214.13 is: 9,317.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,007.22 : 31,499.89 = 6,214.13 : x
  2. Step 2: Convert to fraction form
    21,007.22/31,499.89 = 6,214.13/x
  3. Step 3: Cross multiply
    21,007.22x = 31,499.89 × 6,214.13
  4. Step 4: Simplify right side
    21,007.22x = 195,744,533.72
  5. Step 5: Solve for x
    x = 195,744,533.72/21,007.22
  6. Step 6: Final answer
    x = 9,317.97

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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.