Home / 20,705.93-31,053.68-5,914.92

Finding the Fourth Proportional to 20,705.93, 31,053.68 and 5,914.92

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Solution

The fourth proportional to 20,705.93, 31,053.68 and 5,914.92 is: 8,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705.93 : 31,053.68 = 5,914.92 : x
  2. Step 2: Convert to fraction form
    20,705.93/31,053.68 = 5,914.92/x
  3. Step 3: Cross multiply
    20,705.93x = 31,053.68 × 5,914.92
  4. Step 4: Simplify right side
    20,705.93x = 183,680,141.96
  5. Step 5: Solve for x
    x = 183,680,141.96/20,705.93
  6. Step 6: Final answer
    x = 8,870.90

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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.