Home / 20,378.13-30,567.24-5,587.26

Finding the Fourth Proportional to 20,378.13, 30,567.24 and 5,587.26

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Solution

The fourth proportional to 20,378.13, 30,567.24 and 5,587.26 is: 8,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,378.13 : 30,567.24 = 5,587.26 : x
  2. Step 2: Convert to fraction form
    20,378.13/30,567.24 = 5,587.26/x
  3. Step 3: Cross multiply
    20,378.13x = 30,567.24 × 5,587.26
  4. Step 4: Simplify right side
    20,378.13x = 170,787,117.36
  5. Step 5: Solve for x
    x = 170,787,117.36/20,378.13
  6. Step 6: Final answer
    x = 8,380.90

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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.