Home / 21,260.56-31,869.06-9,581.98

Finding the Fourth Proportional to 21,260.56, 31,869.06 and 9,581.98

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Solution

The fourth proportional to 21,260.56, 31,869.06 and 9,581.98 is: 14,363.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.56 : 31,869.06 = 9,581.98 : x
  2. Step 2: Convert to fraction form
    21,260.56/31,869.06 = 9,581.98/x
  3. Step 3: Cross multiply
    21,260.56x = 31,869.06 × 9,581.98
  4. Step 4: Simplify right side
    21,260.56x = 305,368,695.54
  5. Step 5: Solve for x
    x = 305,368,695.54/21,260.56
  6. Step 6: Final answer
    x = 14,363.15

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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.