Home / 30,316.52-45,459.79-18,321.03

Finding the Fourth Proportional to 30,316.52, 45,459.79 and 18,321.03

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Solution

The fourth proportional to 30,316.52, 45,459.79 and 18,321.03 is: 27,472.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,316.52 : 45,459.79 = 18,321.03 : x
  2. Step 2: Convert to fraction form
    30,316.52/45,459.79 = 18,321.03/x
  3. Step 3: Cross multiply
    30,316.52x = 45,459.79 × 18,321.03
  4. Step 4: Simplify right side
    30,316.52x = 832,870,176.38
  5. Step 5: Solve for x
    x = 832,870,176.38/30,316.52
  6. Step 6: Final answer
    x = 27,472.49

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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.