Home / 28,047.22-38,705.16-15,471.96

Finding the Fourth Proportional to 28,047.22, 38,705.16 and 15,471.96

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Solution

The fourth proportional to 28,047.22, 38,705.16 and 15,471.96 is: 21,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.22 : 38,705.16 = 15,471.96 : x
  2. Step 2: Convert to fraction form
    28,047.22/38,705.16 = 15,471.96/x
  3. Step 3: Cross multiply
    28,047.22x = 38,705.16 × 15,471.96
  4. Step 4: Simplify right side
    28,047.22x = 598,844,687.31
  5. Step 5: Solve for x
    x = 598,844,687.31/28,047.22
  6. Step 6: Final answer
    x = 21,351.30

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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.