Home / 30,383.15-45,559.71-9,318.14

Finding the Fourth Proportional to 30,383.15, 45,559.71 and 9,318.14

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Solution

The fourth proportional to 30,383.15, 45,559.71 and 9,318.14 is: 13,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,383.15 : 45,559.71 = 9,318.14 : x
  2. Step 2: Convert to fraction form
    30,383.15/45,559.71 = 9,318.14/x
  3. Step 3: Cross multiply
    30,383.15x = 45,559.71 × 9,318.14
  4. Step 4: Simplify right side
    30,383.15x = 424,531,481.75
  5. Step 5: Solve for x
    x = 424,531,481.75/30,383.15
  6. Step 6: Final answer
    x = 13,972.60

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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.