Home / 21,296.93-31,949.19-7,256.18

Finding the Fourth Proportional to 21,296.93, 31,949.19 and 7,256.18

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Solution

The fourth proportional to 21,296.93, 31,949.19 and 7,256.18 is: 10,885.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,296.93 : 31,949.19 = 7,256.18 : x
  2. Step 2: Convert to fraction form
    21,296.93/31,949.19 = 7,256.18/x
  3. Step 3: Cross multiply
    21,296.93x = 31,949.19 × 7,256.18
  4. Step 4: Simplify right side
    21,296.93x = 231,828,913.75
  5. Step 5: Solve for x
    x = 231,828,913.75/21,296.93
  6. Step 6: Final answer
    x = 10,885.56

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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.