Home / 20,347.87-28,052.49-17,395.42

Finding the Fourth Proportional to 20,347.87, 28,052.49 and 17,395.42

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Solution

The fourth proportional to 20,347.87, 28,052.49 and 17,395.42 is: 23,982.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.87 : 28,052.49 = 17,395.42 : x
  2. Step 2: Convert to fraction form
    20,347.87/28,052.49 = 17,395.42/x
  3. Step 3: Cross multiply
    20,347.87x = 28,052.49 × 17,395.42
  4. Step 4: Simplify right side
    20,347.87x = 487,984,845.60
  5. Step 5: Solve for x
    x = 487,984,845.60/20,347.87
  6. Step 6: Final answer
    x = 23,982.11

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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.