Home / 21,293.06-31,938.10-7,963.52

Finding the Fourth Proportional to 21,293.06, 31,938.10 and 7,963.52

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Solution

The fourth proportional to 21,293.06, 31,938.10 and 7,963.52 is: 11,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.06 : 31,938.10 = 7,963.52 : x
  2. Step 2: Convert to fraction form
    21,293.06/31,938.10 = 7,963.52/x
  3. Step 3: Cross multiply
    21,293.06x = 31,938.10 × 7,963.52
  4. Step 4: Simplify right side
    21,293.06x = 254,339,698.11
  5. Step 5: Solve for x
    x = 254,339,698.11/21,293.06
  6. Step 6: Final answer
    x = 11,944.72

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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.