Home / 13,867.80-20,769.30-13,589.40

Finding the Fourth Proportional to 13,867.80, 20,769.30 and 13,589.40

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Solution

The fourth proportional to 13,867.80, 20,769.30 and 13,589.40 is: 20,352.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.80 : 20,769.30 = 13,589.40 : x
  2. Step 2: Convert to fraction form
    13,867.80/20,769.30 = 13,589.40/x
  3. Step 3: Cross multiply
    13,867.80x = 20,769.30 × 13,589.40
  4. Step 4: Simplify right side
    13,867.80x = 282,242,325.42
  5. Step 5: Solve for x
    x = 282,242,325.42/13,867.80
  6. Step 6: Final answer
    x = 20,352.35

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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.