Home / 30,638.14-45,928.48-11,930.18

Finding the Fourth Proportional to 30,638.14, 45,928.48 and 11,930.18

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Solution

The fourth proportional to 30,638.14, 45,928.48 and 11,930.18 is: 17,884.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,638.14 : 45,928.48 = 11,930.18 : x
  2. Step 2: Convert to fraction form
    30,638.14/45,928.48 = 11,930.18/x
  3. Step 3: Cross multiply
    30,638.14x = 45,928.48 × 11,930.18
  4. Step 4: Simplify right side
    30,638.14x = 547,935,033.53
  5. Step 5: Solve for x
    x = 547,935,033.53/30,638.14
  6. Step 6: Final answer
    x = 17,884.08

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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.