Home / 30,314.52-45,456.80-18,319.03

Finding the Fourth Proportional to 30,314.52, 45,456.80 and 18,319.03

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Solution

The fourth proportional to 30,314.52, 45,456.80 and 18,319.03 is: 27,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,314.52 : 45,456.80 = 18,319.03 : x
  2. Step 2: Convert to fraction form
    30,314.52/45,456.80 = 18,319.03/x
  3. Step 3: Cross multiply
    30,314.52x = 45,456.80 × 18,319.03
  4. Step 4: Simplify right side
    30,314.52x = 832,724,277.67
  5. Step 5: Solve for x
    x = 832,724,277.67/30,314.52
  6. Step 6: Final answer
    x = 27,469.49

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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.