Home / 19,840.56-27,380.31-10,888.90

Finding the Fourth Proportional to 19,840.56, 27,380.31 and 10,888.90

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Solution

The fourth proportional to 19,840.56, 27,380.31 and 10,888.90 is: 15,026.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.56 : 27,380.31 = 10,888.90 : x
  2. Step 2: Convert to fraction form
    19,840.56/27,380.31 = 10,888.90/x
  3. Step 3: Cross multiply
    19,840.56x = 27,380.31 × 10,888.90
  4. Step 4: Simplify right side
    19,840.56x = 298,141,457.56
  5. Step 5: Solve for x
    x = 298,141,457.56/19,840.56
  6. Step 6: Final answer
    x = 15,026.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.