Home / 55,315.40-82,922.70-20,246.60

Finding the Fourth Proportional to 55,315.40, 82,922.70 and 20,246.60

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Solution

The fourth proportional to 55,315.40, 82,922.70 and 20,246.60 is: 30,351.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,315.40 : 82,922.70 = 20,246.60 : x
  2. Step 2: Convert to fraction form
    55,315.40/82,922.70 = 20,246.60/x
  3. Step 3: Cross multiply
    55,315.40x = 82,922.70 × 20,246.60
  4. Step 4: Simplify right side
    55,315.40x = 1,678,902,737.82
  5. Step 5: Solve for x
    x = 1,678,902,737.82/55,315.40
  6. Step 6: Final answer
    x = 30,351.45

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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.