Home / 21,039.20-31,561.98-6,246.26

Finding the Fourth Proportional to 21,039.20, 31,561.98 and 6,246.26

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Solution

The fourth proportional to 21,039.20, 31,561.98 and 6,246.26 is: 9,370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.20 : 31,561.98 = 6,246.26 : x
  2. Step 2: Convert to fraction form
    21,039.20/31,561.98 = 6,246.26/x
  3. Step 3: Cross multiply
    21,039.20x = 31,561.98 × 6,246.26
  4. Step 4: Simplify right side
    21,039.20x = 197,144,333.19
  5. Step 5: Solve for x
    x = 197,144,333.19/21,039.20
  6. Step 6: Final answer
    x = 9,370.33

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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.