Home / 21,039.31-31,562.16-6,246.38

Finding the Fourth Proportional to 21,039.31, 31,562.16 and 6,246.38

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Solution

The fourth proportional to 21,039.31, 31,562.16 and 6,246.38 is: 9,370.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.31 : 31,562.16 = 6,246.38 : x
  2. Step 2: Convert to fraction form
    21,039.31/31,562.16 = 6,246.38/x
  3. Step 3: Cross multiply
    21,039.31x = 31,562.16 × 6,246.38
  4. Step 4: Simplify right side
    21,039.31x = 197,149,300.46
  5. Step 5: Solve for x
    x = 197,149,300.46/21,039.31
  6. Step 6: Final answer
    x = 9,370.52

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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.