Home / 55,923.28-83,893.56-20,387.60

Finding the Fourth Proportional to 55,923.28, 83,893.56 and 20,387.60

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Solution

The fourth proportional to 55,923.28, 83,893.56 and 20,387.60 is: 30,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,923.28 : 83,893.56 = 20,387.60 : x
  2. Step 2: Convert to fraction form
    55,923.28/83,893.56 = 20,387.60/x
  3. Step 3: Cross multiply
    55,923.28x = 83,893.56 × 20,387.60
  4. Step 4: Simplify right side
    55,923.28x = 1,710,388,343.86
  5. Step 5: Solve for x
    x = 1,710,388,343.86/55,923.28
  6. Step 6: Final answer
    x = 30,584.55

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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.