Home / 55,429.05-83,143.58-20,364.15

Finding the Fourth Proportional to 55,429.05, 83,143.58 and 20,364.15

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Solution

The fourth proportional to 55,429.05, 83,143.58 and 20,364.15 is: 30,546.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,429.05 : 83,143.58 = 20,364.15 : x
  2. Step 2: Convert to fraction form
    55,429.05/83,143.58 = 20,364.15/x
  3. Step 3: Cross multiply
    55,429.05x = 83,143.58 × 20,364.15
  4. Step 4: Simplify right side
    55,429.05x = 1,693,148,232.84
  5. Step 5: Solve for x
    x = 1,693,148,232.84/55,429.05
  6. Step 6: Final answer
    x = 30,546.23

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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.