Home / 28,834.68-39,769.47-18,220.44

Finding the Fourth Proportional to 28,834.68, 39,769.47 and 18,220.44

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Solution

The fourth proportional to 28,834.68, 39,769.47 and 18,220.44 is: 25,130.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,834.68 : 39,769.47 = 18,220.44 : x
  2. Step 2: Convert to fraction form
    28,834.68/39,769.47 = 18,220.44/x
  3. Step 3: Cross multiply
    28,834.68x = 39,769.47 × 18,220.44
  4. Step 4: Simplify right side
    28,834.68x = 724,617,241.97
  5. Step 5: Solve for x
    x = 724,617,241.97/28,834.68
  6. Step 6: Final answer
    x = 25,130.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.