Home / 20,242.64-30,370.44-9,157.52

Finding the Fourth Proportional to 20,242.64, 30,370.44 and 9,157.52

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Solution

The fourth proportional to 20,242.64, 30,370.44 and 9,157.52 is: 13,739.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.64 : 30,370.44 = 9,157.52 : x
  2. Step 2: Convert to fraction form
    20,242.64/30,370.44 = 9,157.52/x
  3. Step 3: Cross multiply
    20,242.64x = 30,370.44 × 9,157.52
  4. Step 4: Simplify right side
    20,242.64x = 278,117,911.71
  5. Step 5: Solve for x
    x = 278,117,911.71/20,242.64
  6. Step 6: Final answer
    x = 13,739.21

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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.