Home / 55,913.94-83,868.12-20,850.84

Finding the Fourth Proportional to 55,913.94, 83,868.12 and 20,850.84

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Solution

The fourth proportional to 55,913.94, 83,868.12 and 20,850.84 is: 31,275.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,913.94 : 83,868.12 = 20,850.84 : x
  2. Step 2: Convert to fraction form
    55,913.94/83,868.12 = 20,850.84/x
  3. Step 3: Cross multiply
    55,913.94x = 83,868.12 × 20,850.84
  4. Step 4: Simplify right side
    55,913.94x = 1,748,720,751.22
  5. Step 5: Solve for x
    x = 1,748,720,751.22/55,913.94
  6. Step 6: Final answer
    x = 31,275.22

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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.