Home / 21,038.96-31,561.58-6,246.13

Finding the Fourth Proportional to 21,038.96, 31,561.58 and 6,246.13

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Solution

The fourth proportional to 21,038.96, 31,561.58 and 6,246.13 is: 9,370.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038.96 : 31,561.58 = 6,246.13 : x
  2. Step 2: Convert to fraction form
    21,038.96/31,561.58 = 6,246.13/x
  3. Step 3: Cross multiply
    21,038.96x = 31,561.58 × 6,246.13
  4. Step 4: Simplify right side
    21,038.96x = 197,137,731.69
  5. Step 5: Solve for x
    x = 197,137,731.69/21,038.96
  6. Step 6: Final answer
    x = 9,370.13

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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.