Home / 21,010.56-31,516.70-9,776.44

Finding the Fourth Proportional to 21,010.56, 31,516.70 and 9,776.44

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Solution

The fourth proportional to 21,010.56, 31,516.70 and 9,776.44 is: 14,665.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010.56 : 31,516.70 = 9,776.44 : x
  2. Step 2: Convert to fraction form
    21,010.56/31,516.70 = 9,776.44/x
  3. Step 3: Cross multiply
    21,010.56x = 31,516.70 × 9,776.44
  4. Step 4: Simplify right side
    21,010.56x = 308,121,126.55
  5. Step 5: Solve for x
    x = 308,121,126.55/21,010.56
  6. Step 6: Final answer
    x = 14,665.06

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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.