Home / 30,220.62-45,331.27-9,160.49

Finding the Fourth Proportional to 30,220.62, 45,331.27 and 9,160.49

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Solution

The fourth proportional to 30,220.62, 45,331.27 and 9,160.49 is: 13,740.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,220.62 : 45,331.27 = 9,160.49 : x
  2. Step 2: Convert to fraction form
    30,220.62/45,331.27 = 9,160.49/x
  3. Step 3: Cross multiply
    30,220.62x = 45,331.27 × 9,160.49
  4. Step 4: Simplify right side
    30,220.62x = 415,256,761.71
  5. Step 5: Solve for x
    x = 415,256,761.71/30,220.62
  6. Step 6: Final answer
    x = 13,740.84

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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.