Home / 18,968.04-28,471.50-13,427.64

Finding the Fourth Proportional to 18,968.04, 28,471.50 and 13,427.64

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Solution

The fourth proportional to 18,968.04, 28,471.50 and 13,427.64 is: 20,155.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.04 : 28,471.50 = 13,427.64 : x
  2. Step 2: Convert to fraction form
    18,968.04/28,471.50 = 13,427.64/x
  3. Step 3: Cross multiply
    18,968.04x = 28,471.50 × 13,427.64
  4. Step 4: Simplify right side
    18,968.04x = 382,305,052.26
  5. Step 5: Solve for x
    x = 382,305,052.26/18,968.04
  6. Step 6: Final answer
    x = 20,155.22

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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.