Home / 20,383.04-30,548.24-9,130.16

Finding the Fourth Proportional to 20,383.04, 30,548.24 and 9,130.16

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Solution

The fourth proportional to 20,383.04, 30,548.24 and 9,130.16 is: 13,683.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383.04 : 30,548.24 = 9,130.16 : x
  2. Step 2: Convert to fraction form
    20,383.04/30,548.24 = 9,130.16/x
  3. Step 3: Cross multiply
    20,383.04x = 30,548.24 × 9,130.16
  4. Step 4: Simplify right side
    20,383.04x = 278,910,318.92
  5. Step 5: Solve for x
    x = 278,910,318.92/20,383.04
  6. Step 6: Final answer
    x = 13,683.45

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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.