Home / 20,379.07-30,567.88-5,587.75

Finding the Fourth Proportional to 20,379.07, 30,567.88 and 5,587.75

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Solution

The fourth proportional to 20,379.07, 30,567.88 and 5,587.75 is: 8,381.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,379.07 : 30,567.88 = 5,587.75 : x
  2. Step 2: Convert to fraction form
    20,379.07/30,567.88 = 5,587.75/x
  3. Step 3: Cross multiply
    20,379.07x = 30,567.88 × 5,587.75
  4. Step 4: Simplify right side
    20,379.07x = 170,805,490.69
  5. Step 5: Solve for x
    x = 170,805,490.69/20,379.07
  6. Step 6: Final answer
    x = 8,381.42

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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.