Home / 21,009.21-31,504.56-6,219.27

Finding the Fourth Proportional to 21,009.21, 31,504.56 and 6,219.27

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Solution

The fourth proportional to 21,009.21, 31,504.56 and 6,219.27 is: 9,326.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,009.21 : 31,504.56 = 6,219.27 : x
  2. Step 2: Convert to fraction form
    21,009.21/31,504.56 = 6,219.27/x
  3. Step 3: Cross multiply
    21,009.21x = 31,504.56 × 6,219.27
  4. Step 4: Simplify right side
    21,009.21x = 195,935,364.87
  5. Step 5: Solve for x
    x = 195,935,364.87/21,009.21
  6. Step 6: Final answer
    x = 9,326.17

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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.