Home / 20,705.92-30,881.96-17,606.32

Finding the Fourth Proportional to 20,705.92, 30,881.96 and 17,606.32

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Solution

The fourth proportional to 20,705.92, 30,881.96 and 17,606.32 is: 26,259.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705.92 : 30,881.96 = 17,606.32 : x
  2. Step 2: Convert to fraction form
    20,705.92/30,881.96 = 17,606.32/x
  3. Step 3: Cross multiply
    20,705.92x = 30,881.96 × 17,606.32
  4. Step 4: Simplify right side
    20,705.92x = 543,717,669.99
  5. Step 5: Solve for x
    x = 543,717,669.99/20,705.92
  6. Step 6: Final answer
    x = 26,259.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.