Home / 28,190.25-42,272.55-13,417.02

Finding the Fourth Proportional to 28,190.25, 42,272.55 and 13,417.02

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Solution

The fourth proportional to 28,190.25, 42,272.55 and 13,417.02 is: 20,119.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190.25 : 42,272.55 = 13,417.02 : x
  2. Step 2: Convert to fraction form
    28,190.25/42,272.55 = 13,417.02/x
  3. Step 3: Cross multiply
    28,190.25x = 42,272.55 × 13,417.02
  4. Step 4: Simplify right side
    28,190.25x = 567,171,648.80
  5. Step 5: Solve for x
    x = 567,171,648.80/28,190.25
  6. Step 6: Final answer
    x = 20,119.43

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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.