Home / 20,419.81-30,623.22-6,565.57

Finding the Fourth Proportional to 20,419.81, 30,623.22 and 6,565.57

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Solution

The fourth proportional to 20,419.81, 30,623.22 and 6,565.57 is: 9,846.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,419.81 : 30,623.22 = 6,565.57 : x
  2. Step 2: Convert to fraction form
    20,419.81/30,623.22 = 6,565.57/x
  3. Step 3: Cross multiply
    20,419.81x = 30,623.22 × 6,565.57
  4. Step 4: Simplify right side
    20,419.81x = 201,058,741.42
  5. Step 5: Solve for x
    x = 201,058,741.42/20,419.81
  6. Step 6: Final answer
    x = 9,846.26

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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.